Term
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Definition
Resource Conservation and Recovery Act-created sanitary landfills, subtitle D, led to practices to reduce Municipal Solid Waste. subtitle C estabished system for controlling hazardous waste from generation to disposal. Address dangers of improper storage and conservation of energy and resources. 1.tracking of hazardous waste 2. accurate record keeping-list hazardous chemicals in CFR, something doesn't have to be listed to be toxic hazardous, if it demonstrates ignitability, corrosivity, toxicity, or reactivity 3. Conservation of valuable energy and resources |
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Definition
municipal solid waste i.e. paper, glass, plastic, metal, wood, food scraps, yard trimmings from households, offices, hospitals, prisons, commercial industry. has been steadily increasing from 60's-90's but has leveled of in the 90's. |
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Definition
Waste-to Energy i.e. combustion w/ energy produced. If energy not harnessed called incineration |
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Definition
anything that may pose a substantial threat or potential danger to human health. Requires a cradle-to-grave analysis. Ignitability, corrosivity, reactivity, toxicity. |
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Definition
treatment, storage, and disposal facilities |
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Term
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Definition
Hazardous and Solid WAste Amendments made to RCRA in 1984. Focus on protecting groundwater |
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Term
hazardous waste can be minimized by... |
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Definition
1. eliminating or substituting raw materials for less hazardous ones 2. changing the manufacturing process to decrease or eliminate hazardous waste 3. separate or segregate from non-hazardous material as to not further contaminate or spread it |
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Definition
reducing the amount of toxicity of wastes prior to entering the waste stream i.e. products package reuse, redesign that reduces material or toxicity or modifying practices |
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Definition
recycling; removing materials from the MSW to convert to productive use. reduces need for virgin materials, reduces pollution, saves energy |
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Definition
materials recycling facilities, use a magnet and filter objects manually. |
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Definition
glass bottles ground down into smooth pellets |
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Definition
using microorganisms to degrade organic matter while increasing temp. to kill most pathogens, good for conditioning soil, even though the are nutrient-low, by improving porosity and aeration which increases water retention. can be via shredder, in-vessel, or windrow process. use bound to increase as education increases. |
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Definition
any form of energy that is produced by any vibration of objects which compress and expand air, water or solids to produce waves. Only a pollutant when exceeds a certain amplitude, measured in decibels. After enters ear, tympanic membrane>malleus>incus>stapes>choclea. |
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Definition
PTS (permanent) or TTS (temporary) Threshold Shift so that anything less than that decibel cannot be heard. Caused by excessive sound pressures destroying cilia |
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Definition
set by the Dept of Labor as 90dBA for 8 hr day, 40 hr week=OEL, no PEL but some communities regulated |
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Definition
energy released from the decomposition of radioisotopes either electromagnetic or alpha or beta particles |
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Definition
capable of removing an electron from an atom so that it carries a charge. Very hazardous within the body: radiation sickness=CNS, GI tract and bone marrow damage, and increased rick of leukemia, breast, thyroid, ovarian, bladder, lung, colon, liver, stomach, nonmelanoma skin cancer. Can be natural or human generated or enhanced. Over half caused by radon. Natural sources account for 82% of total: 1. radon 2. internal 3. terrestrial, 4. cosmic |
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Definition
2nd leading cause of cancer! enters house from water to bed rock to soil which can be tracked in or penetrate the walls. decays from uranium and into.... Polonium 218, Lead 214, Bismuth 214, Polonium 214, Lead 210=stable isotope. Greatly increase risk of lung cancer. Causes from 5,000-20,00 excess cases. Found in high concentrations in the Midwest and in very low concentrations in Western Coast, Texas and Florida. |
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Definition
Occupational Safety and Health Administration proposes the official federal standards, PEL's. decided upon by the Supreme Court based on risk and feasibility. |
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Definition
Environmental Protection Agency |
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Definition
potential radiation exposure. no air pollution, more energy yield. |
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Definition
cheaper, no long-lived radioactive waste, contributes most to global warming |
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Term
regulation of nuclear activity |
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Definition
Energy Reorganization Act>Nuclear Regulatory Commission, Nuclear Waste Policy Act, Low-Level Radioactive Waste Policy. |
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Definition
any electromagnetic radiation with energy less than xrays. still dangerous in that they can heat tissues and damage genetic material (cancer) i.e. microwave, radio, UV rays, laser pointer |
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Term
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Definition
nonionizing, is hazardous to skin cells, damage DNA, skin cancer but needed to synthesize vitamin D and has germicidal effects. |
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Term
sources of Indoor Air Pollution |
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Definition
combustion!, radon gas from soil, volatile chemicals from water supplies, building materials, furniture and electronic equipment, outdoor pollutants |
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Term
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Definition
asthma, heart disease, dx impairment, neurological diseases, reproductive health concerns, cancer, autoimmune diseases. Can cause acute lower respiratory infections which are the largest cause of death for children 5 yrs or younger. |
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Term
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Definition
volatile organic compound (ex. radon), source concentration in water supply, transferred to air, proximity (very close to shower head when exposed) high in the bathroom. |
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Term
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Definition
structural materials, wallboard, adhesive, paints, sealants. Leech potentially harmful chemicals i.e. Formaldehyde in FEMA trailers |
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Term
furniture and electronics |
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Definition
glues and sealants, fabrics, carpets, flame retardants, and electronics. Brominated chemicals. Ultra fine particles and other chemicals. Less ventilation. |
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Term
outdoor air concentrations effect on indoor air quality |
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Definition
size of particles and their distribution, operations of building, available loss mechanisms |
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Term
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Definition
iF=Intake Rate/Emission =(Concentration in Air x Breathing Rate)/Emission =Breathing Rate/Ventilation Rate
Because: IR=Ca x BR and Ca=E/V |
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Term
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Definition
increase ventilation, select better building materials, and green home products. |
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Term
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Definition
type of Occupational Exposure Limit, unofficial.
Threshold Limit Values, set by American Conference of Governmental Industrial Hygienists. ACGIH. Time weighted based on conventional hours. Based on past workplace exposures, historically set 2-5x higher than they should be. 14-17% ppl show adverse effects at or below these levels. |
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Term
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Definition
type of OEL, standards, must be enforced.
Permissible Exposure Limits, as set by Occupational Safety and Health Act. must demonstrate significant risk>1/1000, set at lowest technically and economically feasible level. |
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Definition
Superfund. Find, Prioritize, and Clean. ID sites contaminated w/ hazardous substances, responsible parties held accountable, and set priorities for cleanup. Established Strict Liability, Joint and Several Liability, and Retroactive Liability. Established hazard ranking system. SARA a response to charges RCRA wasn't strict enough. |
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Term
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Definition
Emergency Planning and Community RIght-to-Know Amendment, increase public access to info about storage and use of hazardous chemicals |
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Term
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Definition
department of transportation regulates the movement of hazardous wastes |
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Term
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Definition
source reduction, required to reach a certain level if found to have a certain level of toxic emissions |
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Term
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Definition
Toxic Substance Control Act, mandates chemical manufactures keep data |
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Term
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Definition
Federal Insecticide, Fungicide, and Rodenticide Act, collect and maintain info about pesticides while controlling their use. |
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Term
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Definition
Clean Air Act 1990 VII diff titles |
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Term
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Definition
clean water act, provides protection and propgation of underwater wildlife. Regulated runoff |
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Term
Wingspread Meeting of 1991 |
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Definition
introduced concept of endocrine disruption in animals, caused by chemicals released into the environment which results in hormonal changes. |
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Term
key components of endocrine system |
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Definition
1. glands 2.hormones 3.receptors |
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Term
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Definition
anything that interferes with the production or activity of endocrine hormones i.e. pesticides, plasticizers, PCB's, dioxin, phytoestrogen, Bisphenol A take effect by: 1. mimicry which causes overstimulation 2. binding to receptor and blocking channel 3.interfering w/ hormone production or regulation |
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Term
potential adverse effects of endocrine disruptors |
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Definition
reduced sperm counts, infertility, more male births (?), early puberty, increase in non-Hodgkin lymphoma, testicular, breast and ovarian cancer, cryptochordism (undescended testes), thyroid disease. rates of occurrence greatly increasing, mainly dx'd nations. |
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Term
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Definition
food supply! ingestion of contaminated grains and grasses>livestock or spraying fruits or leeching from plastics and containers |
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Term
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Definition
-synthetic estrogen (similar to DES) capable of producing a wide range of endocrine effects even at low doses, rate of leeching can be increased by heat, very high or low pH. -continually exposed to low doses, more than 6 bill produced and 100 tons released. widely used in the production of certain consumer goods: food storage containers, water bottles, glasses, med equipment, CDS, safety gear, bumpers, food can linings, dental sealants, types of coating. not plasticizers. -main exposure=ingestion! |
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Term
Stanford University Study |
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Definition
yeast study, unexplained content of estrogen from lab flasks leeching. activity observed in breast cancer cells, capable of being blocked by tamoxifen |
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Term
Case Western Reserve University |
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Definition
high rate of chromosomal abnormalities in lab mice due to plastic cages, replicated in a controlled experiment. |
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Term
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Definition
study urine, blood, breast milk, placental tissue, semen, etc. -CDC found traces in 95% of samples taken. Estimated adult daily intake at 1 microgram/kg BW/day. Much higher in infants and small children. Within the range shown to have toxic effects in lab animals. correlates to icreased odds of cardiovascular disease and diabetes. |
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Term
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Definition
Reference Dose, EPA's reference of daily oral exposure that is likely to be w/out appreciable risk even to sensitive subpopulations. **set at 50 micrograms/kgBW/day for BPA in 1988. established by a rat bioassay that showed no NOAEL but a LOAEL of 50 milligrams/kgBW/day. Since then studies have found effects FAR below this level. |
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Term
effects of low dose exposure to BPA |
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Definition
precancerous lesions, changes in reproductive organ dx, weight, hormone concentration and receptor density, puberty, estrus cycle, sperm production, fertility, changes in brain morphology, bx, NT concentrations and receptors, decreased immunity to bacterial infections. |
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Term
recent evaluations of BPA |
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Definition
Chapel Hill group: serious concern CERHR: minimal and some concern, conflict of interest so eliminated 2 important studies, small sample, not Good Lab Practices (dx'd to prevent fraud in private industry but not required for govt and academic studies) -eventually have begun to be phased out by manufactures, some pending and recently enacted legislation. -may be no safe dose! particularly concerning for our children in that many of their products contain these materials. |
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Term
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Definition
worthy of regulation, EPA has decided, based on sufficient evidence (epidemiologic studies, controlled human exposure, animal toxicology) of health or welfare effects i.e. lead, nitrogen oxide, carbon monoxide, sulfur dioxide, ozone |
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Term
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Definition
reactive oxygen species generated within body due to inhalation of certain pollutants. antioxidants can provide defense for some by removing the damage components. |
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Term
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Definition
dust and droplets suspended in the air, the smaller they are the more harmful they are b/c can get imbedded deeper, composition effects still unknown. -coarse=>2.5 micrograms in diameter, come from mechanical processes, heavy mass, efficiently removed by gravity (hours-days), can potentially be filtered out by nasal passages -fine=<2.5 micrograms, formed by coagulation of particles in nuclei mode, condensation of vapors and then grow in size, persist for days to weeks, mainly removed by precipitation. can be deeply embedded into lung tissue.sources -ultrafine=<1.0 micrograms |
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Term
anthropogenic sources of PM |
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Definition
Directly emitted: 1. fuel combustion 2. industrial production 3. non-industrial i.e. road dust 4.transportation Secondary: form in atmosphere through chemical reactions |
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Term
why is air quality so bad in sonoma? |
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Definition
wind pattern blows in, gets trapped by mountain ranges |
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Term
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Definition
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Term
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Definition
peak in the winter, but decreasing over time. natural logarithm of deaths attributed to this shows its only a serious consequence for at risk groups. "Harvesting Effect" i.e. children, pregnant women (LA's Children Hospital Study) |
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Term
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Definition
prospective cohort study, followed 8,000+ ppl over 16 yrs, specific pollution monitors for this study, both fine and coarse particles, 10 micrograms/mg associated with 8% increase in all mortality. 2.5 micrograms/m3 also associated with deaths from these cancers, ACS found decrese life expectancy by 1.5 yrs. |
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Term
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Definition
half mil ppl in 151 cities PM 2.5 and sulfate and cardiopulmonary mortality and lung cancer |
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Term
WHO air quality guidelines |
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Definition
20 micrograms/m3 for PM 10 and 10 micrograms/m3 for PM 2.5 are the lowest levels shown to increase risk for cp and lung cancer. Attempts to get that low will be futile. |
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Term
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Definition
several miles out from ground level, protects from UV rays |
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Term
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Definition
secondary pollutant, created by NO+VOC+sunlight worst during morning rush hour. 50% of US pop resides in areas not in line with current EPA standards. Worst in LA and Houston, Mexico City |
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Term
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Definition
primary tool of environmental health sciences to assess dose. IAP "measure ppl where they are" |
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Term
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Definition
eye and nose irritation, dry throat, headache, fatigue, sinus congestion, shortness of breath, sneezing, dizziness, nausea, and asthma. Causal pathways for long term exposure very complicated and hard to id. |
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Term
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Definition
sick building syndrome=usually temporary discomfort, apparently linked to time spent indoors. WHO assessment: 30% of new buildings subject to these complaints. sources: inadequate ventilation, chemical contaminants both in and outdoors, biological contaminants. |
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Term
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Definition
77% of the world is developing and most of these ppl spend their time in rural-indoor environments. In the 23% developed world, its mainly urban indoors. |
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Term
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Definition
woodsmoke carbon does not combust completely, leaving Products of Incomplete Combustion (very bad), usually happens in small environments with poor ventilation. 6-20% of the fuel carbon will be converted to toxic substances i.e. small particles, CO, NO2, hydrocarbons, chlorinated organics
For the India study, if no exposure between cook times, 805 micrograms/m^3, when typical air pollution standards are set 50-75 micrograms/m^3. Only higher exposure concentration was being a sweeper. |
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Term
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Definition
Concentration=Emission/Air Exchange Rate x Volume **should be in grams/m^3. |
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Term
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Definition
average concentration experienced by a group or person over a period of time. |
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Term
acute lower respiratory disease |
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Definition
kills 2-3 million kids everywhere, leading cause of death usually pneumonia in dx'ing countries. Found to be 36% attributable fraction of deaths. |
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Term
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Definition
Randomized exposure study of pollution indoors and respiratory effects. Compare stone open fire to chimney wood stove. Used little back packs, tubito. |
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Term
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Definition
energy that is absorbed by ground and radiated back as heat in infrared waves which is absorbed by gas and water vapor traps heat. |
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Term
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Definition
Water vapor-not greatly affected by human activity CO2-fossil fuels, land use changes, cement manufacturing CH4- landfills, rice, livestock, waste management, fossil recovery. by weight, 72x more powerful than CO2 in producing instantaneous warming. N2O nitrous oxide-fertilizer, planted N-fixers, combustion ozone, chloroflourocarbons aerosoles (can be heating and cooling)
main 3 influenced by human bx, increasing sig. since 1750, 20-fold increase in energy use. |
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Term
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Definition
can be natural-solar or volcanic- or anthropogenic. |
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Term
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Definition
can't really be reduced, very long-lived green house gas. HEAVILY rising. Due to combustion of fossil fuels, burning of forests (double effect because it releases and removes a consumer), release of methane and nitrous oxide. need to find long-term storage methods to reduce emissions from coal-fired power plants. |
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Term
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Definition
sensitive indicator of the state of the climate, small changes reflect big effects, i.e. evaporation and rainfall increase, more extreme rain events, glaciers retreating, sea ice shrinking, sea level rising (as predicted) 2005 hottest yr in 125 yr instrumental record. Last 50 yrs hottest in the last 6000 yrs. Doesn't mean the whole is heating, parts are cooling too. |
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Term
Ex. of global climate change |
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Definition
Greenland is melting, China's rivers will begin to flood b/c the glaciers that feed them are melting, Arctic sea ice disappearing. Causes sea level to rise |
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Term
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Definition
intergovernmental panel on climate change, observations have shown to be on the high side of their projections, bad for us. More floods, wildfires, hurricanes, coral reef death, and monsoons. |
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Term
Adverse impacts of Climate Change |
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Definition
floods: increase everywhere except Oceania fires: increase everywhere ocean: becoming more acidic, effects fish and wildlife cyclones: power increases along sea surface temp increases. Same trend with coral reef bleaching. monsoons: decreasing which causes less moisture flow from South to North, leads to flooding in south china, drought in the north. landslides: caused by flooding i.e. Cali water: by end of century 50-90% |
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Term
Concerns of climate change |
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Definition
ecosystem impacts: extinction threat, high for mammals. economic impacts: agricultural productivity, cost of disaster health impacts: direct=temp related death, air pollution related effects, indirect=water,food, vector, rodent borne diseases, effects of water and food supply shortage. small-probability, large consequence events: increased likelihood of these events. Assement pattern: 1. GHG emissions scenarios 2.GCM model, maps of future climate 3.Health impact model, estimate of each impact 4.conversion to GBD |
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Term
distribution of health impacts |
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Definition
rich countries impose 500 x > than they receiver poor countries receive >16 x what they impose
8000x difference. |
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Term
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Definition
important industrial chemical, high exposure levels worldwide and very poorly regulated in US. Classified as human carcinogen, associated w/ leukemia. Recent scandals? victoria's secret, FEMA trailers as high as 1.200 ppm. Accounts for >5% of annual GNP. (very economically important) Used in tissues as bactericides, production of resins and plastics, insulation materials. can cause a cross link btwn cytosine and lysine making it genotoxic. also causing chromosome damage which can decrease the number of progenitor cells cultured. |
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Term
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Definition
occupational: manufacturing and industries that utilize it. environmental: auto, cig smoke, forest burning, etc residential: off-gassing building materials, furniture, carpets, paper products
higher in the summer (heating increases leeching), higher in cities, indoor most significant source and can exceed occupational sources. |
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Term
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Definition
WHO recommends .08 ppm for indoor. ASIGH:TLV in US is .3 ppm, no PEL! OSHA: OEL .75 ppm has not changed since 1992 when it was proven that FA causes nasopharyngeal cancer. |
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Term
IARC classification on FA |
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Definition
human carcinogen (group 1) causes nasopharyngeal cancer, if can be proved to be casually related to leukemia, much more would be done about it. strond epi evidence for this but limited bio understanding, no credible animal model |
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Term
possible mechanisms for FA induced leukemia |
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Definition
traditional=targets bone marrow directly alt 1=targets blood, stem, or progenitor cells alt 2= targets pluripotent nasal/oral stem cells
should be studied by targeting specific cells, by applying biomarkers to molecular epidemiological studies. |
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Term
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Definition
naturally occurring metalloid that moves through the Earth's crust into the groundwater via erosion, the dissolved arsenic moves into marine sediments and soil and can travel through food chain this way.
Can be inorganic (arsenate or arsenite-most toxic) or organic (simple methylated species or complex organoaresenicals arsenosugars) based on oxidation states. +5, +3,0, -3.
primarily ingested but can be inhaled or absorbed as well. can cause cancer of skin, bladder, lung and kidney, is an established carcinogen, and pigmentation changes.
Cancer risk 100x greater than any other drinking contaminant. |
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Term
As mechanisms of toxicity |
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Definition
tumor enhancer, causes oxidative stress, induces cellular hyperproliferation and inhibits DNA repair, genotoxicity, gene amplification, transformation, oxidative stress, cell proliferation. |
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Term
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Definition
aquifer storage and recovery, way of accessing uderground water sources, storage, resource conservation, but unexpected release of arsenic. 1. California, Florida, and other parts of US 2. Can hydraulically control contaminant plumes 3. has INjection and Recollection Phase 4. can contaminate ground water with As if present |
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Term
Algae as bioindicator of As level |
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Definition
biomonitor to determine how much accumulated, primary producers impact higher trophic levels. |
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Term
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Definition
As species that is the analog of phosphate |
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Term
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Definition
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Term
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Definition
predominant in algea, best for monitoring is brown. |
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Term
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Definition
chronic inflammatory disorder of the airways, associated with hyperresponsiveness that leads to recurrent episodes of wheezing and breathlessness. several phenotypes (allergic v. nonallergic) common in children based on maternal bx and atopy. increasing recently. leading cause of chronic disease in children, costs $500 mil for treatment annually. Why increasing? Western lifestyle, hygiene and obesity, AA kids at greatest risk for morbidity due to SES that creates other health issues. |
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Term
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Definition
smoking, age, sex, race, genes, socioeconomic status, obesity, occupation, outdoor and indoor environments, infections |
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Term
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Definition
Southeast has the greatest number of landfills |
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Term
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Definition
i.e. alpha, beta, gamma radiation. within the body, has a very small penetration range but very high energy and thus can effect cell function of a few local cells that then mutate and metastasize. |
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Term
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Definition
used in flame retardants in furniture, carpets, and electronics, source of indoor air pollution. includes PBDE's, tetrabromobishpenol-A, hexabromocyclododecane. |
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Term
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Definition
very difficult, 90% of bills fail at subcommittee for review and support, after already being introduced into House and Senate |
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Term
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Definition
OSHA set PEL at 1 ppm, based on risk and feasibility. Any lower would not be feasible for petrochemicals and coke and coal chemicals industrial sectors. But even new level shows a 10/1000 increased risk of leukemia. |
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Term
solid waste disposal amendment to RCRA |
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Definition
requires tracking through uniform hazardous waste manifest, proper labeling, and accurate recording keeping |
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Term
transportation of hazardous materials |
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Definition
UN sets recommendations for packaging, construction requirements, and labeling, not transportation vehicles. |
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Term
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Definition
health effects evaluated by epi studies, controlled human studies and animal tox studies |
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Term
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Definition
largest natural source of methane emissions (animals contribute the most to anthropogenic methane emissions) |
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Term
feedback loops of warming |
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Definition
snow melting>more sun light absorbed (less reflected)>more warming more evaporation>more clouds>less warming
net effect depends on location and timing. |
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Term
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Definition
about equal between terrestrial and oceanic ecosystem, almost double taken up by and stored in atmosphere. |
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Term
net effect of aerosols and ghg's |
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Definition
cooler than the net affect of ghg but warmer than net affect of aerosoles |
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Term
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Definition
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Term
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Definition
1000 times higher than in distant fossil record |
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Term
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Definition
IAP greater attributable risk. more direct relationship easier to contol. |
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Term
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Definition
the averages and extremes of hot/cold, wet/dry, snowpack and melt, winds and storm tracks, ocean currents and upwelling. when, how much and where! |
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Term
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Definition
cumulative amount of emissions per capita from past activity minus the amount removed by natural processes. |
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Term
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Definition
an be reduced by planting metalloid hyperaccumulating ferns, utilizing membrane filtration, installing dug wells, **not boiling. can be done on a household scale. difficult and costly. can be attained by using deeper wells. |
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