TITLE:
Assessment of Selective Reduction Strategies over Northeastern Regions of Ohio Using a Photochemical Grid Model—A Case Study
AUTHORS:
Jhumoor Biswas, Kevin Crist, Saikat Ghosh
KEYWORDS:
8-Hour Ozone, Non-Attainment, Emission Reduction, Relative Reduction Factor, Source Apportionment, Northeastern Regions of Ohio, Photochemical Grid Model
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.5 No.2,
April
21,
2015
ABSTRACT: This study is
primarily focused on Cleveland-Akron-Lorain nonattainment area in northeastern Ohio. The base year 2002 considered in this
study witnessed one of the worst cases of ozone pollution in this region with ozone values exceeding previous 8-hour ozone
standards of 84 ppb. The
photochemical modeling system CAMx was applied to compute relative reduction
factors, which were used subsequently to scale the base year (2002)
values at the ozone monitoring sites to estimate
the ozone design values for the year 2009 in Cleveland area for different
emissions reduction scenarios. The results disclose that the largest
change in the 2009 ozone design values consequent
to applying auxiliary emission control strategies is between 1 and 1.5 ppb, which
still left certain counties in northeastern Ohio unable to demonstrate
attainment. The results are important in the development of emission control
strategies in today’s context with instillation of even more stringent ozone standards and potential future increases
in ozone concentrations due to climate change.