Atmospheric science researchers published findings on Houston's ozone. They found that while local emissions play a role in the rise of Houston's ozone levels, most of the pollutants are carried in from other parts of the country.
University of Houston atmospheric science researchers have found that while local emissions play a role in the rise of ozone levels in Houston, most of the pollutants can be carried in from other regions across the country, leading to excess ozone pollution. Their findings offer insights into strategies to mitigate future ozone pollution for the region.
Their analysis revealed that roughly 63% of the excess ozone during this period was due to the transported ozone from the central and northern part of the country, while approximately 37% of the elevated ozone production was attributed to local photochemistry. The work was published in the journal"Our study shows that Houston air pollution is a very complex phenomenon.
Wang's study found most of the ozone production hotspots in Houston were located over the urban core of the city and industrial districts like the Houston Ship Channel. These locations had high concentrations of nitrogen oxides and volatile organic compounds generated from industry and vehicle emissions. Nitrogen oxides combined with VOCs form ozone under sunlight.
The team relied on rich observational data from the TRACER-AQ field campaign, a scientific experiment that measured air quality in the Houston region in September 2021 conducted in partnership with the U.S. Department of Energy, NASA and TCEQ. This data was critical for Wang's collaborators to validate their modeling.
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