Class Notes (888,181)
US (344,751)
JHU (310)
AS.280.335 (10)
Lecture 6

AS.280.335 Lecture 6: Lecture 6 Notes

2 Pages

AS Public Health Studies, AS Earth & Planetary Sciences, EN Geography & Environmental Engineering
Course Code
Yager, James D.; Bressler, Joseph P.

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
September 22, 2016 Air Pollution • Donora, PA was a big reason the Clean Air Act was passed • Units are important because they drive regulation • A massive source of air pollution is automobiles • Secondary – not released at the source but they’re involved in transport and fate (something happens in the atmosphere that changes the primary pollutant to a secondary one) • It makes a big deal if we reduce emissions of air pollutants because such reductions save on medical expenditures, as treatment of these diseases in terms of hospitalizations are prevented • Federal government does cost-benefit analysis in setting standards: how many lives are going to be saved versus how much money it’s going to cost • EPA monitors air quality in order to enforce standards • If the data suggests that these standards are too high, then policy on these standards will change (the law itself – Clean Air Act doesn’t). • PM of all sizes is emitted from a range of combustions – in terms of the law, we regulate 2.5s and 10s. • Levels of PM emissions are different from state to state (have different types of toxicity based on different chemicals bound to PM) • The PAH’s you are breathing in can cause lung cancer and the PAH’s you are ingesting can give you intestinal cancer (route of exposure can determine the type of adverse health outcome) • Allergens are big particles
More Less
Unlock Document
Subscribers Only

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
Subscribers Only
You're Reading a Preview

Unlock to view full version

Unlock Document
Subscribers Only

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.