Academic journal article Journal of Environmental Health

Surveying Boron and Naturally Soft Groundwater with a Computer Database

Academic journal article Journal of Environmental Health

Surveying Boron and Naturally Soft Groundwater with a Computer Database

Article excerpt

* Groundwater in Ingham County, Michigan, is generally characterized as "hard," with the exception of naturally "soft" groundwater (less than 200 ppm of calcium carbonate) in one area of bedrock.

* The naturally soft groundwater has above-normal levels of boron--in excess of 1.0 parts per million.

* A computer mapping program and a water quality database were used to delineate the area of naturally soft groundwater.

* A review of well construction records indicated that wells in the soft-water area had more shale bedrock than hard-water wells.

* A statistical analysis confirmed the correlation between high levels of boron in groundwater and a higher percentage of shale bedrock.

* A correlation also was found between water hardness and sodium-to-boron ratios in groundwater.

* Medical research has shown that boron can have positive effects in reducing osteoporosis: In one study, a boron supplement of 3 ppm reduced urinary excretion of calcium and magnesium.

* At the same time, several reports have indicated a health concern over the negative effects boron may have on the male reproductive system. …

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