Unformatted text preview: Air Quality Issues – Acid Deposition Deposition
EVPP 111 Lecture Dr. Largen Air Quality Issues Air Air Pollution
– Outdoor – Indoor Acid deposition Ozone depletion Greenhouse Gases & Global Warming Air Quality Issues: Acid Deposition Air “Normal” rainfall – slightly acidic – reason Air Quality Issues: Acid Deposition Air Acid deposition – accumulation of potential acid-forming particles on accumulation a surface surface – results from results natural causes human activities Air Quality Issues: Acid Deposition Deposition Acid deposition – acid-forming particles produced by combustion processes combustion oxidizing agents oxidizing Figure 17.9: Acid Deposition Figure Air Quality Issues: Acid Deposition Air Deposition types – wet (precipitation) – dry (deposition) Air Quality Issues: Acid Deposition Deposition Acid rain – scope of problem global – can be extremely acidic Air Quality Issues: Acid Deposition Air Acid rain causes damage to – human-made materials – ecosystems Figure: Acid Rain Damage Figure: Air Quality Issues: Acid Deposition Air Acid rain causes damage to – ecosystems Aquatic
– Results of experimental acidification of lakes – Scope of problem Air Quality Issues: Acid Deposition Air Acid rain Acid – extent of damage to ecosystems depends on extent nature of bedrock in area proximity to acid-forming pollution sources
– eastern Canada and NE US Fig. 17.3 Fig. iClicker Question iClicker Since a pH of 6 is on the acidic side of a neutral pH Since of 7, a rainfall event with a pH of 6 would be considered acid precipitation. considered – A. True – B. False iClicker Question iClicker Which of the following regions of the US has the Which greatest problem with acid precipitation? greatest – A. southwest – B. northwest – C. southeast – D. northeast iClicker Question iClicker Which of the following substances can combine Which with water in the atmosphere to produce acids? with – A. Carbon monoxide – B. Carbon dioxide – C. Sulfur dioxide – D. Nitrogen oxides – E. B, C and D The End The ...
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- Winter '08
- Acid rain, acid deposition, Air Quality Issues