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Portland, Maine Pollution Indexes

Portland, Maine Pollution Indexes


2012 Pollution Indexes Portland, ME Maine United States
Air Pollution Index 91 83 100
Ozone Index 94 83 100
Lead Index 92 66 100
Carbon Monoxide Index 98 97 100
Nitrogen Dioxide Index 68 56 100
Particulate Matter Index 100 97 100

Pollution Index (100 = National Average): Index score for an area is compared to the national average of 100. A score of 200 indicates twice the national average, while 50 indicates half the national average.

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Portland, Maine Demographics Summary