(WUSA) - The Chesapeake Bay is coming back to life as dead zones decrease, according to a report by the Department of Natural Resources.

Dead zones are down this June thanks to drier and warmer conditions from February to April and the wetter and cooler late spring according to the report.

Samples collected by the DNR in June showed 12 percent of the bay had low oxygen levels, an improvement over the long term average of 17 percent. It is a significant decrease from this time last year when a third of the bay was unsuitable for aquatic life.

Oxygen poor zones peak in July and can persist into the fall as the warmer, fresher water floats above deeper, saltier water. Summer heat mixed with pollution also cause algae blooms that consume oxygen when they die and decompose.

By Benny Magno, wusa9.com

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