Biology Final

At low doses it affects animals by mimicking estrogen and feminized males.

assesses environmental factors that influence human health and quality of life.

considered environmental health hazards, impossible for us to avoid risk from biological agents completely, we can take steps to reduc the liklihood of infection

science that examines the impacts of poisonous substances on humans and other organisms.

a poison or toxic agent

deals with toxic substances that come from or are discharged into our environment

chemicals or types of radiation that cause cancer

chemicals that cause mutations in DNA of organisms

chemicals that cause harm to the unborn

chemical toxin that assults the nervous system, heavy metals, lead, mercury, cadmium

overact the immune system causing an immune response that is not necessary

toxins that interfere with the endocrine system or hormone system

methyl mercury, may be stored in muscle tissue when these toxins are built up in animals it's bioaccumulation

when toxins are eatin down the food chain (ex: water has a toxin, zooplantin live on water, fish eat zooplantin, bird eats fish, bird gets low concentration of the toxin

large scale comparisons among groups of people usualy comparing people who are exposed to a toxin and those who are not

data on a graph with dose on the x-axis and response on the y-axis the it's the resulting curve

high exposure for short periods of time

low amounts over a long amount of time

interactive impacts that are more than or different from the simple sum of their constituent effects

the quantitative measurement of risk and the comparison of risks involved in different activities or substances

atmospheric conditions over short periods of time typically days or hours

pattern of atmospheric conditions found across large geographic regions over long periods of time

departure from the north temperature profile

form when wnds rush into areas of low pressure where warm moisture-laiden air over tropical oceans

people have done a significant amount of air pollutants, from wood fires, power plants

soot, carbon monoxide, are pollutants emitted into the troposhphere in a form that is directly harmful

harmful substances produced when primary pollutants interact or react with constitents of the atmosphere

1963 emended in 1970 and 1990 legislations funds research into pollution controll, sets standards for air quality, imposes limits, enables people to sue those who violate conditions

colorless, odorless, vehicles are main contributers

colorless but has a strong odor, mainly from combustion of coal for electricity

reddish foul smelling gas that contributes to smog and acidic decomposition, when atmospheric nitrogen reacts with high temperatures

colorless gas is secondary pollutant caused by sunlight, heat, nitrogen oxides, and volatile carbon containing chemicals

composed of solid or liquid particles small enough to be suspended in the atmosphere and able to damage respiratory tissues when enhaled

chemically or physically remove airborn pollutants before they are emitted

chemicals known to cause serious health or envoronmental problems

when coal or oil is burned

light-driven chemical reactions of primary pollutants and normal atmospheric compounds that produce a mix of over 100 chemicals

human made compounds

deposition of acidic or acid-forming pollutant from the atmosphere onto Earth's surface

more broadly to wet or dry depostion on land of wide variety of pollutants including mercury nitrates organchlorines and others

highly combustable substances formed from the remains of organisms from past peological ages

a tree that falls and decays as a roting log undergos

decomposed with little or no oxygen scuh as lakes swamps and oceans

energy returned on investment =energy returned+energy invested

consists mainly of methane and typically includes varying amounts of other volatille hydrocarbons

sludge like material, tends to form under pressure conditions

by dividing the amount remaining by the annual rate of producion

peak of production of oil in 1974

predicting the actual day of peak in oil production is difficult we will not know for certain we will not know if we have reached it until a few years after it has passed

improves efficiency of power plants in which excess heat produced during electricity generation is captured and used to heat workplaces and homes and to produce other kinds of power

energy that holds together protons and neutrons within the nucleus of an atom

the release of nuclear energy in power plants

organic material that makes up living organisms

energy from tres, charcoal from burned wood, cattle manure

biomass energy materials are burned to create biopower

biomass energy sources are converted into biofuels

kinetic energy of moving water to generate electricity

building are built in materials meant to maximize absorbtion of sunlight

energy collection makes use of technology to focus or store solar energy

convert sunlight into electrical energy

is a way to use the absorbed solar radiation from the oceans