What has caused air quality in United States to improve/get better since the 1950s?

Question

asked Nov 28, 2022 27.3k views

2 Answers

Dribbler · Answer 1 · 2022-11-30T11:00:37+0000

Answer:

Reducing pollution from transportation sources has led to healthier air for Americans. In cities, smog has been visibly reduced.

Step-by-step explanation:

i hope this helped

Adeniyi · Answer 2 · 2022-12-04T03:11:57+0000

Answer:

better mileage on cars, took lead out of paint, smaller packaging like for delivery and store products, EPA laws updating