Wisconsin Department of Natural Resources - Air Program
October 11, 2018
The Air Quality
Trends Report, released this month, shows the air quality in the state
continues to improve. The report provides official state monitoring data
through 2017 for air pollutants and shows that concentrations of most
pollutants regulated under the Clean Air Act have been decreasing over the past
decade throughout the state.
Many success stories are highlighted in the report,
including reductions in pollutants like sulfur dioxide (SO2), nitrogen
dioxide (NO2) and fine particles.
Available in this
year’s report is emissions data for criteria and precursor pollutants. The Air
Program monitors emissions pollutants that are either emitted directly
from various sources or those that form in the atmosphere via chemical
reactions between other emitted pollutants, known as precursors. Wisconsin has seen
dramatic reductions in emissions since 2002; in fact, emissions of
ozone-forming pollutants (NOx and VOCs) have decreased 50 percent.
The report is available on DNR’s air quality trends webpage, which also includes an interactive map where users
can view data from monitoring sites around the state.
To view more information on Wisconsin's air quality, go to DNR's website and search
"air quality."
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