at the Lake Biwa Museum, Japan

Robin James Smith

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A water-quality monitoring station, Lake Biwa. Click on the image for next one in the series.

A water-quality monitoring station, in the north basin of Lake Biwa. The water quality of Lake Biwa started to deteriorate in the 1960's, resulting in algal blooms and red tides. Since then local residents and the local government have strived to improve the water quality, mostly by banning synthetic washing powders and improving the sewerage system. Today levels of total nitrogen are still relatively high, while total phosphorus levels have been dropping. The north basin is less polluted than the south basin. (Photograph taken 13th November 2008.) (Click on the image to view the next in the series.)