Polyethylene balls balance bromate levels in Ivanhoe Reservoir

High levels of bromate in Ivanhoe Reservoir have inspired officials of the Los Angeles Department of Water and Power to dump millions of shiny black polyethylene balls into the water.

Bromate forms when sunlight combines with bromide and chlorine. The balls should control vapor and keep bromate levels in check.

Read more here.

Source: American Water Works Association

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