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Review I Constants I Periodic Table 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 (Figure 1) Previous Answers Submit Correct A decrease in -83% is a substantial improvement in air quality from 2000 to 2014 Part D How many lead atoms were in one cubic centimeter of air in 2006? Express the number of lead atoms numerically. View Available Hint(s) Figure 1 of 1 Lead Concentration in Air in U.S Vη ΑΣφ ? 3.5 108 0.35 Pb atoms 0.3 0.25 Previous Answers Submit 0.2 0.15 XIncorrect; Try Again; 3 attempts remaining 0.1 0.05 0- 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 Part E Complete previous part(s) Year Source: U.S. EPA Air Trends (http://3.epa.gov/airtrends/lead.html) Provide Feedback Next Pb Concentration ug/m

Review I Constants I Periodic Table 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 (Figure 1) Previous Answers Submit Correct A decrease in -83% is a substantial improvement in air quality from 2000 to 2014 Part D How many lead atoms were in one cubic centimeter of air in 2006? Express the number of lead atoms numerically. View Available Hint(s) Figure 1 of 1 Lead Concentration in Air in U.S Vη ΑΣφ ? 3.5 108 0.35 Pb atoms 0.3 0.25 Previous Answers Submit 0.2 0.15 XIncorrect; Try Again; 3 attempts remaining 0.1 0.05 0- 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 Part E Complete previous part(s) Year Source: U.S. EPA Air Trends (http://3.epa.gov/airtrends/lead.html) Provide Feedback Next Pb Concentration ug/m

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Review I Constants I Periodic Table 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 (Figure 1) Previous Answers Submit Correct A decrease in -83% is a substantial improvement in air quality from 2000 to 2014 Part D How many lead atoms were in one cubic centimeter of air in 2006? Express the number of lead atoms numerically. View Available Hint(s) Figure 1 of 1 Lead Concentration in Air in U.S Vη ΑΣφ ? 3.5 108 0.35 Pb atoms 0.3 0.25 Previous Answers Submit 0.2 0.15 XIncorrect; Try Again; 3 attempts remaining 0.1 0.05 0- 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 Part E Complete previous part(s) Year Source: U.S. EPA Air Trends (http://3.epa.gov/airtrends/lead.html) Provide Feedback Next Pb Concentration ug/m
Transcribed Image Text:Review I Constants I Periodic Table 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 (Figure 1) Previous Answers Submit Correct A decrease in -83% is a substantial improvement in air quality from 2000 to 2014 Part D How many lead atoms were in one cubic centimeter of air in 2006? Express the number of lead atoms numerically. View Available Hint(s) Figure 1 of 1 Lead Concentration in Air in U.S Vη ΑΣφ ? 3.5 108 0.35 Pb atoms 0.3 0.25 Previous Answers Submit 0.2 0.15 XIncorrect; Try Again; 3 attempts remaining 0.1 0.05 0- 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 Part E Complete previous part(s) Year Source: U.S. EPA Air Trends (http://3.epa.gov/airtrends/lead.html) Provide Feedback Next Pb Concentration ug/m
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