asked 57.1k views
1 vote
Please help!

The EPA sets national air-quality standards for common air pollutants. The table shows the change in the concentrations of these pollutants over time and the impact on overall air quality. Reducing which pollutant resulted in the most air-quality improvement?

A.CO(carbon monoxide)

B. O3 (ozone)

C. Pb (lead)

D. NO2 (nitrite)

Please help! The EPA sets national air-quality standards for common air pollutants-example-1
asked
User Epologee
by
8.3k points

2 Answers

1 vote

Answer:C: Pb(lead)

Step-by-step explanation:

Just did it

answered
User Bernhard Kircher
by
8.2k points
5 votes

Answer:

the answer is C.

Step-by-step explanation:

answered
User Jeff Hutchins
by
8.3k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.