Publications by authors named "N Scovronick"

Article Synopsis
  • Research reveals that fine particulate matter (PM) from wildland fire smoke significantly affects health, but the impact of its composition remains unclear.
  • A new model was created to estimate daily concentrations of smoke-derived Organic Carbon (OC) and Elemental Carbon (EC) in the U.S. and Southern Canada from 2002 to 2019, showing that wildland fire smoke has offset some improvements in air quality.
  • Long-term exposure to smoke-derived carbonaceous PM results in over 7,000 deaths annually in the contiguous U.S. alone, emphasizing the need for effective policies to manage fire smoke due to increasing frequency and intensity linked to climate change.
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As wildfires increasingly impact the global economy and public health, understanding their effects is crucial. Particularly, the relationship between wildfires and anxiety disorders remains unclear. In this study, we explore this association by analyzing 1,897,865 emergency department visits for anxiety disorders in the western United States.

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Background: The minimum mortality temperature (MMT) or MMT percentile (MMTP) is an indicator of population susceptibility to nonoptimum temperatures. MMT and MMTP change over time; however, the changing directions show region-wide heterogeneity. We examined the heterogeneity of temporal changes in MMT and MMTP across multiple communities and in multiple countries.

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Article Synopsis
  • The study investigates how meteorological factors like temperature and humidity influence COVID-19 transmission across 439 cities from February 2020 to August 2022.
  • Researchers found that lower temperatures (5 °C) significantly increase the risk of COVID-19 incidents compared to moderate temperatures (17 °C), with absolute humidity showing an inverse relationship.
  • The analysis revealed no significant interaction between vaccination rates or variants and the effects of weather on COVID-19 transmission, reinforcing the importance of environmental factors in understanding the pandemic.
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Article Synopsis
  • The study investigates how daily rainfall characteristics—like intensity, duration, and frequency—affect mortality rates from all causes, cardiovascular issues, and respiratory problems across 34 countries from 1980 to 2020.
  • It utilizes a time series analysis to evaluate the association between daily mortality and rainfall events that occur at different return periods (one, two, and five years), including the effects of extreme rainfall with a 14-day lag.
  • The results indicate that extreme rainfall events (five-year return period) correlate with increased mortality rates, particularly for respiratory cases, while moderate rainfall shows protective effects, and the impact varies based on climate and vegetation.
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