Most of earths water is stored in the oceans, but solar energy continually evaporates
this water, and winds distribute water vapor around the globe.
Water that condenses over land surfaces, in the form of rain,
Alpha: can be stopped by paper, Beta by class or aluminum & Gamma concrete, lead or steal.
Non nonionizing particles: visible light, infrared, microwaves, radio. Ionizing particles: Cosmic, gamma, x
rays & ultra violet.
Dose- Response curve Threshold & LD 50.
Dont clean ammonia W/Clorox.
Acute exposure- high exposure in short period of time.
overlong period of time (heating plastic in microwave.
Chronic exposure- lower amounts
Dont clean ammonia W/Clorox
Assesses environmental factors that influence human health and quality of life
Seeks to prevent adverse effects on human health and ecological systems
Contains environmental toxicology within its scope
Environmental health hazards
Exam 2 Review
An organized set of policies, procedures, and
activities designed to protect, promote, and
Coordinated School Health Program
improve the health and well0being of students
and staff, thus improving a student's ability to
Exam 1 Review
Department of Family and Children Services
Publicly institution funded by the government
After school services
Emergency food assistance
Food stamps and foster care
Loran Smith Cancer Ce
Composition of the Atmosphere
0.03% carbon dioxide
Only oxygen and carbon dioxide enter into biological processes
Regions of the Atmosphere
Divided according to temperature zones
Troposphere sea leve
The most reasonable strategies for control have been to reduce, collect, capture, or
retain the pollutants before they enter the atmosphere.
Reduction of emissions through energy efficiency and conservation measures is
People, Progress, and Nature
the portion of Earth where life occurs
the basic functional unit of nature. Living and nonliving elements interact to process
energy and cycle materials
a natural grouping of different k
Indoor Air Pollution
Products of combustion
Chemical fumes and particles
Sick building syndrome
Biomass Cook stove
Villagers in admire a new biomass cook stove. Initiatives to design and market cleaner-
Impacts of Global Warming
Shifting rainfall patterns
Extreme weather events more common
Rising sea levels
Diminishing crop yields due to hotter drier weather
Loss of biodiversity
Human illnessspread of tropical diseases
Collapse of thermohaline cir
Food Chains, Food webs & Trophic Levels
Photosynthesis provides all the energy for all ecosytems.
One of the major property of an ecosystem is productivity ( amount of biomass) in a
given area in a given time.
Photosynthesis is called as the primary pr
Present energy technologies performing far below achievable efficiency levels
197374 Arab oil embargo shocked U.S. into realizing the dangers of foreign reliance
Energy efficiency maximize output from current technologies
Clean Energy Alternatives
U.S. ENERGY USE REALITIES
Americans comprise 5% of the worlds population and consume 25% of its energy
Oil constitutes 39% of total energy use in U.S.
. Domestic production peaked in 1970 and has remained flat
The cycling of earth materials through living systems and back to earth
O gaseous cycles
O sedimentary cycles
Nutrients approximately 40 of the 92 naturally occurring chemical elements are
essential to the existence of living orga
Point source pollution, phosphorus, nitrogen.
Recombinant DNA= patched together from DNA of multiple organisms.
Cafo= concentrated animal feeding operation.
Non point and point sources what can be done to prevent it (runoff, buffer zone.