Pearson eText for Chemistry: structures and Properties -- Instant Access (Pearson+)
2nd Edition
ISBN: 9780136951537
Author: Nivaldo Tro
Publisher: PEARSON+
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Chapter 1, Problem 130E
The U.S. Environmental Protection Agency (U.S. EPA) monitors air quality in the United States. Lead is among the pollutants regularly monitored and regulated. Lead is released into the atmosphere primarily by the processing of metals ores containing lead and by lead-based battery manufacturing. The effects of too much exposure to lead include neurological damage and cardiovascular disease. Because of the Clean Air Act and its amendments, the amounts of lead in air have been decreasing for many years. The chart below shows the lead concentration in air in the United States from 2000 to 2014. Examine the data and answer the questions below.
Lead Concentration in Air in U.S.
Year
- Determine the lead concentrations in 2000 and in 2014.
(final concentration — initial concentration) percent change = . .
:
x 100 %
initial concentration
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Chapter 1 Solutions
Pearson eText for Chemistry: structures and Properties -- Instant Access (Pearson+)
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