{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

304%20Oct%206%20%28Air%20Pollution%29%20students

304%20Oct%206%20%28Air%20Pollution%29%20students - HSCI 304...

Info iconThis preview shows pages 1–27. Sign up to view the full content.

View Full Document Right Arrow Icon
HSCI 304: Perspectives on Environmental Health October 6, 2011 Air Pollution
Background image of page 1

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

View Full Document Right Arrow Icon
Announcement Homework 1 is due Wednesday, October 19 th , by 5:00 pm 2 ways to turn it in: WebCT, under the Assignments tab In my office (if I’m not in, slide it under my door) PLEASE TURN IN ONLY ONE COPY
Background image of page 2
What is air pollution? “…a state of the atmosphere in which substances that  harm human or plant health or corrode materials exist  in concentrations  above their normal or background  levels .”           Steyn and McKendry,  A Citizen’s Guide to Air Pollution *(Does not need to be anthropogenic, or man-made, to be considered pollution) 
Background image of page 3

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

View Full Document Right Arrow Icon
7.6 µg/m 3 12.0 µg/m 3 21.7 µg/m 3 65.3 µg/m 3 Visibility Glacier National Park Malm, Introduction to Visibility, 1999 PM 2.5 =
Background image of page 4
Air Pollution Impacts Visibility Damage to materials, vegetation Human health
Background image of page 5

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

View Full Document Right Arrow Icon
Davis, When Smoke Ran Like Water , 2002 1948 Donora, Pennsylvania www.oceanservice.noaa.gov Photo taken at noon, Oct 29, 1948 Donora Steel Mill, 1948, during an inversion
Background image of page 6
Davis, When Smoke Ran Like Water , 2002 1948 Donora, Pennsylvania Zinc Mill
Background image of page 7

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

View Full Document Right Arrow Icon
1948 Donora, Pennsylvania Davis, When Smoke Ran Like Water , 2002 20 dead within days 50 dead within a month ~6,000 ill
Background image of page 8
1952 London Bell & Davis. EHP Supp 2001; 109:389-94 3,000 excess deaths in three weeks Initially attributed to an influenza epidemic 12,000 excess deaths over the next three months? Bell & Davis. EHP Supp 2001; 109:389-94
Background image of page 9

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

View Full Document Right Arrow Icon
Outdoor Air Pollutants “Criteria” air pollutants Particulate matter Ozone Nitrogen oxides Sulfur dioxide Carbon monoxide Lead
Background image of page 10
Particulate Matter Liquid and solid particles in the air Range from 0.01 to 100 µm in diameter Origin, chemical composition, travel distance all related to size Regulated as mass/volume. –PM 10 and PM 2.5
Background image of page 11

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

View Full Document Right Arrow Icon
PM Sizes EPA, ORD, 2004 EPA, ORD, 2004
Background image of page 12
Airway Deposition Parkes 1994 www.na-mic.org
Background image of page 13

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

View Full Document Right Arrow Icon
Airway Deposition Parkes 1994
Background image of page 14
All particles are  not the same… NARSTO PM Assessment
Background image of page 15

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

View Full Document Right Arrow Icon
Air Pollution Measurements
Background image of page 16
Air Pollution Measurements
Background image of page 17

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

View Full Document Right Arrow Icon
Estimated PM 10 Concentration in World Cities (pop >=100,000) PM 10  ( µ g/m 3 ) .    5-14 .   15-29 .   30-59 .    60-99 100-254 World Health Organization
Background image of page 18
http://www.epa.gov/oar/oaqps/gooduphigh/ Ozone: "Good up high, bad nearby"
Background image of page 19

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

View Full Document Right Arrow Icon
Ground level ozone NO x + VOC O 3 sunlight VOC = volatile organic compounds
Background image of page 20
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}