ENV-0007 Lecture Notes - Lecture 29: Evaporation, Smog, State Implementation Plan

• School: Tufts University
• Department: Environmental Studies
• Course: ENV-0007
• Professor: Colvard

Document Summary

A trip to guangzhou, china: 3rd largest city in china, pollutants are so bad that they block the sun, cause respiratory problems- asthma, emphysema, etc, ground-level zones (accumulates in systems with high pollutant levels) Carbon monoxide: primary air pollution, colorless, odorless gas. Particulate matter: mixture of solid particles and liquid droplets, aerosols. Size of particulates: can vary greatly ranges in size from small molecules to hair. Implicated in genetic mutations: also alter local climate, the (cid:862)weekend effect(cid:863) Air pollution changes through precipitation and wind speed. Worse due to weekday commute more release of pollutants. Maximum level is reached by thursday or friday which causes precipitation events, increased wind speed. Higher pollutant levels build up in the course of the week, reduced commuting causes these levels to drop back down. Sulfur dioxide: primary pollutant, volcanic eruptions and sea spray, fossil fuel combustion, smelting ores, emitting as so2, health effects.