Interpretation:
The reason for low levels of PAH in the late 1800s and early 1900s needs to be explained.
Concept introduction:
PAH is a short form of polycyclic
Explanation of Solution
Given:
From the given figure, the average PAH concentration before 1905 is quite low that is from
The reason for low levels of PAH in the late 1800s and early 1900s is due to less use of electricity. But after 1905, the use of electricity increases which was produced from the energy derived from burning of fossil fuels and thus, resulting in increase in concentration level of PAHs after 1905.
Chapter 21 Solutions
Chemistry: Matter and Change
Additional Science Textbook Solutions
Essential Organic Chemistry (3rd Edition)
Organic Chemistry
Organic Chemistry (9th Edition)
Chemistry: The Central Science (13th Edition)
General Chemistry: Principles and Modern Applications (11th Edition)
Chemistry: The Central Science (14th Edition)
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY