Abstract
In January 2013, a high concentration of hexavalent chromium was detected in the meltwater at an urban park in Tokyo. A chromate manufacturing plant operated at this location until 1972. The highest concentration value showed was in excess of up to 740 times the Japanese regulation value (0.05 mg L−1). Although 40 years have passed since dumping, highly polluted groundwater is still found today. Heavy rain or snowfall is a trigger for the outbreak of Cr(VI) pollution in this area.
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Hori, M., Shozugawa, K. & Matsuo, M. Hexavalent chromium pollution caused by dumped chromium slag at the urban park in Tokyo. J Mater Cycles Waste Manag 17, 201–205 (2015). https://doi.org/10.1007/s10163-014-0243-0
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DOI: https://doi.org/10.1007/s10163-014-0243-0