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EHST 2110 Exam 2 ECU With Questions And 100% ALL SURE ANSWERS
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EHST 2110 Exam 2 ECU With Questions And 100% ALL SURE ANSWERS
Practice questions for this set
, Terms in this set (47)
No. Education, surveillance, inspection, and Is technology the answer to environmental health?
consultation are necessary.
Takes up oxygen in the water. Caused by Eutrophication, that puts nitrates and phosphates from
Algae Bloom
agriculture runoff (manure/fertilizer).
Impure drinking water through microbial waterborne disease. Epidemics took heavy tolls of human
Cholera population, worldwide prior to 19th century. Source discovered by Dr. Jon Snow, took off water
handle.
Giardia & Cryptosporidium Resistant to chlorine and need filtration in addition to disinfection. (mainly crypto)
Establish max contaminate level, for more than 80 biological chemicals, tests drinking water. Public
Safe Drinking Water Act
water supply.
Leachate Garbage seepage going into the ground.
- Point Source Pollution: You can see where the contaminants are coming from
2 Categories of Water Pollution
- Non-point Source Pollution: Unable to source where the contaminants origin are.
When chlorine added to naturally occurring organic matter in lakes or rivers. Demonstrates
Trihalomethanes
carcinogenic activity in living beings.
Lead is a toxic metal found in products and around homes. Low levels of lead may even lead to
Lead in Drinking Water
health issues. It's associated with old plumbing systems. Young children are at most risk.
Feed lot runoff, seepage from septic tanks from animal feces/fertilizer. Blue baby disease, has
Nitrates in Water
nitrates in formula water, removing oxygen from the baby's body.
St. James Parish, Fecal waste dumped into cesspool located near well of London. Dr. John Snow
found cholera in the sewage, water pump. He drew a map and found that a majority of people dying
Broad Street Well (Cholera)
were drinking from the broad street well. He removed the well's handle and people stopped dying.
He pioneered "epidemiology" the study and control of diseases.
How they make fertilizer using gravity tanks. Nitrates and phosphates sludge fertilizer in the bottom
Biosolid Landfarming/Management (sludge)
of the sedimentation tank.
EHST 2110 Exam 2 ECU
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