Air pollution spikes linked to lower test scores for Salt Lake County third graders — ScienceDaily

Fine particulate matter (PM2.5), the tiny particles responsible for hazy air pollution, are detrimental to children’s health even inside the classroom. Mounting evidence has linked chronic exposure with poor academic performance in K-12 students. Until now, no research had examined the impact of “peak” air pollution events, the 24-hour spikes of extremely high PM2.5 levels. For students in Salt Lake County, Utah, these episodes are a dangerous reality — the county’s largest city, Salt Lake City, was among the top 10 most polluted American cities for short-term particle pollution in the latest American Lung Association report.

In a new study, University of Utah researchers found that more frequent peak air pollution exposure was associated with reduced math and English language arts (ELA) test scores for third graders in all primary public schools in Salt Lake County during the 2016-2017 year. The minimum peak pollution levels in this study are below

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Zoom spikes as latest New York City school closure means more remote learning


  • Zoom Video Communications reversed earlier losses and surged as much as 5.5% on Wednesday afternoon following the announced closure of New York City public schools, which will start Thursday.
  • NYC public schools will transition to remote learning because a surge in COVID-19 cases pushed the 7-day positivity rate above the 3% threshold.
  • Zoom has been a prime beneficiary of the COVID-19 related lockdowns that swept across the country throughout 2020. 
  • Visit Business Insider’s homepage for more stories.

Zoom Video Communications reversed its 3% loss on Wednesday and surged as much as 5.5% after the New York City public school system said it will close and transition to remote learning.

The move by ame after a surge in daily COVID-19 cases pushed the seven-day positivity rate above the 3% threshold set by NYC mayor Bill DeBlasio.

DeBlasio tweeted on Wednesday: “New

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