Iowa’s summer watering ban has brought attention to high nitrate levels in waterways, prompting efforts to monitor environmental issues statewide. The Des Moines area is particularly affected, with Central Iowa Waterworks running its nitrate removal facility continuously since March.

Nitrate Pollution in Iowa

According to Doctor Matt Helms, director of the Iowa Nutrient Research Center, the state’s nitrate pollution is a significant concern. High nitrate levels can be harmful to human health, particularly for infants, and are largely caused by upstream fertilizer and manure runoff.

The Iowa Nutrient Research Center is working to reduce pollution in Iowa’s rivers and streams through research on nutrient reduction practices. The center funds projects that explore various strategies for reducing nitrate levels, including the use of cover crops and wetlands to absorb excess nutrients.

The issue of nitrate pollution is complex, with multiple factors contributing to the problem. Heavy rainfall can exacerbate the issue by flushing nitrates into waterways, while dry years can lead to a buildup of nitrates in the soil. The use of tile drainage, a network of underground pipes that transport water and nutrients, can also contribute to nitrate pollution.

Local authorities have implemented measures to reduce water demand, including a lawn watering ban, to help mitigate the effects of high nitrate levels. However, more needs to be done to address the root causes of the problem and ensure the long-term health of Iowa’s waterways.

Original reporting: KCCI Des Moines — read the source article.