Unit 8: Pollution: module 4.44: Indoor air pollution
Module 44: Indoor air pollution (IAP)
- Leading cause of death in LDC (women). LDC is the latest term for "Lesser Developed Countries"
- Burning manure for fuel, open pit fires, CO, PM10
- Sick building syndrome: formaldehyde, CO2, VOC
- Check out the Living Building Challenge and LEED Platinum in the elab hallway
Main culprits:
- VOC (paints, aerosols, vaporizers)
- CO (burning),
- Radon (radioactive rocks)
- Lead (paint, gasoline)
- Formaldehyde (adhesives, wood products, carpet glue)
- Asbestos (insulation, tiles, flooring)
- PM10 (soot from burning)
Asbestos-asbestosis, mesothelioma (like the ads on TV, usually aimed at Military folks or shipyard workers)
Radon 222-lung cancer (smoke demo-lungs)-#2 cause of lung cancer in the US (behind smoking of course)
Why?: Radon is very heavy gas, sits in lower lobes of your lungs, emits alpha particles (He nucleus) causing cancer
AIR QUALITY LABS-From the AP exam folks
• Air Quality: Air quality can be assessed using various methods.
• Particulates: Sticky paper can be used to collect air particulates from various sources, and then the paper can be examined under a microscope. It is
not possible to see the smallest particulates, but they do color the white paper.
• Ozone: In this lab, an ecobadge or a homemade potassium iodide gel sampler is hung or worn in
order to collect data on tropospheric ozone. The badge or KI sample changes color in the presence
of ozone and becomes more intensely colored as the amount of ozone increases.
• Carbon dioxide: In this lab, a commercial sampling device is used to determine the amount of carbon dioxide in an air sample. Car exhaust, burning tobacco, or other pollutants can also be sampled.
Pollution roundup:
Review for AP:
https://elab.hpa.edu/apes/ap_exam_prep/apes_princeton/ch08-pollution.pdf
https://elab.hpa.edu/apes/ap_exam_prep/apes%205%20steps%20to%20a%205/18-pollution.pdf
Old site links:
http://physics.hpa.edu/physics/apenvsci/apes_exam_prep/apes_princeton/ch08-pollution.pdf
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