envi test 4/21

Mod 47: Classifying

  • nonpoint/point can fid source

Know if its a point or nonpoint source

  • Types of chemicals

    • Medals

    • industrial/military

    • Carcinogens (cancer),  teratogens (brith defects), endocrine disruptors (Hormones)

    • Oil spills (effects and cleanup)

Mod 48: Clean water

  • Reservoirs

  • Aqueducts

  • Desalination (2 types)

    • Distillation: Boiling the water, catch the steam into fresh water

    • Reverse Osmosis, force salt water through thin membrane at high pressure



Mod 49: 

Persistence and routes of exposure

  • Chemicals into body


Mod 50: Solid Waste

  • Landfills

  • Incinerators

  • Waste reduction methods

Mod 50.5: Hazmat regulations

  • CERCLA (superfluid)

  • RCRA (Lifetime tracking cradle to grave)


Mod 52: Sewage treatment

  • Sewage treatment plants

  • Septic plants


Mod 53: Dose response studies

  • LDSO

  • EDSO

  • NOEL


Mod 54: Disease:

  • Link between environmental conditions and the spread of disease

  • Ex: Malaria, tuberculosis

  • Poor sewage treatment leading to disease

Extras:


Clean air act

Safe drinking act

Rcra

Cercla

Primary, secondary tertiary treatment in sewage plants

  • Primary: screening

  • Secondary: biological components

  • using advanced methods like filtration, coagulation, and disinfection