Particle Pollution - 24 Hour Learn More Grade: B How is my grade calculated? Weighted Average: 0.3 Change Since 2009:
0.3
0.3
fewer days this year
Particle Pollution - Annual Learn More Grade: Pass How is my grade calculated? Design Value 8.1 Change Since 2010:
8.9
8.1
µg/m3
Groups At Risk Learn More Total Population: 177,967 Risks to the population Pediatric Asthma: 4,205 Risks to people with Asthma Adult Asthma: 11,013 Risks to people with Asthma COPD: 9,410 Risks to people with COPD Cardiovascular Disease: 12,436 Risks to people with Cardiovascular Disease Diabetes: 14,303Risks to people with Diabetes Children Under 18: 47,820 Risks to children and teens Adults 65 & Over: 21,020 Risks to older adults Poverty Estimate: 29,171Risks to people with low incomes

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  • Ranked 75 for high ozone days out of 220 metropolitan areas
  • Ranked 67 for 24-hour particle pollution out of 220 metropolitan areas
  • Ranked 63 for annual particle pollution out of 220 metropolitan areas

Compare Your Air



High Ozone Days Learn More
Change Since

This County:

Johnston, NC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Chatham, NC
  • Durham, NC
  • Franklin, NC
  • Granville, NC
  • Harnett, NC
  • Johnston, NC
  • Lee, NC
  • Orange, NC
  • Person, NC
  • Vance, NC
  • Wake, NC

ABCDFDNCINC
Particle Pollution - 24 Hour Learn More
Change Since

This County:

Johnston, NC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Chatham, NC
  • Durham, NC
  • Franklin, NC
  • Granville, NC
  • Harnett, NC
  • Johnston, NC
  • Lee, NC
  • Orange, NC
  • Person, NC
  • Vance, NC
  • Wake, NC

ABCDFDNCINC
Particle Pollution - Annual Learn More
Change Since

This County:

Johnston, NC

Other counties with monitors in this metropolitan area

There are no other counties in this metropolitan area

  • Chatham, NC
  • Durham, NC
  • Franklin, NC
  • Granville, NC
  • Harnett, NC
  • Johnston, NC
  • Lee, NC
  • Orange, NC
  • Person, NC
  • Vance, NC
  • Wake, NC

PASSFAILDNCINC
Groups At Risk
Total Population: Risks to the population
Pediatric Asthma: Risks to people with Asthma
Adult Asthma: Risks to people with Asthma
COPD: Risks to people with COPD
Cardiovascular Disease: Risks to people with Cardiovascular Disease
Diabetes: Risks to people with Diabetes
Children Under 18: Risks to children and teens
Adults 65 & Over: Risks to older adults
Poverty Estimate: Risks to people with low incomes

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