Lecture 4 - Air AirPollution whenstoked,willbelchtheir...

Info icon This preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Air Pollution “As soon as I had left the heavy As soon as I had left the heavy air of Rome with its stench from smoky chimneys which when stoked, will belch their enclosed pestilential vapor and t I f lt h i d ” soot, I felt a change in mood .” Lucius Seneca (Ancient Rome) 1
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
What is Air Pollution? “The atmosphere becomes polluted when it is changed by the addition of particles, gases … so that the altered h h b f i i atmosphere poses some harm because of its impact on … human health, animals, vegetation or materials” Godish 1997 – Godish, 1997 The concept of pollution entails: • a sense of degradation • a loss of quality • adverse environmental/health effects
Image of page 2
Primary vs. Secondary pollutants Primary are emitted directly into the atmosphere From chimney stack or farm activity e.g. CO, NO, SO 2 , HC, PM S d i l h i l ti ith Secondary involve chemical reactions with primary pollutants d h Generated in atmosphere over time e.g. Ozone 3
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon