Minnesota Pollution Control Agency (MPCA) administrators effectively managed numerous air pollutants over the past two years. According to Minnesota Public Radio News, these officials improved air quality in the Twin Cities by focusing on fine particle pollution.
Recent MPCA data showed that the Twin Cities area averages roughly 10 air quality alerts in most years. However, there were only four such alerts in both 2011 and 2012.
Air quality warnings are issued if pollutant levels are unhealthy for certain groups, including people who have respiratory problems. MPCA official Rich Strassman said that the recent reduction in the number of warnings is a positive sign for the state, but noted that the weather also impacted the agency's calculations.
"We can probably attribute it to some fairly active weather in 2012, where the concentrations just didn't accumulate over multiple days like we've seen in the past," Strassman told the news source.
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