Organofluorine compound Exceeded provisional target value at 37 points in 13 prefectures 5:22 on June 12
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When the Ministry of the Environment investigated rivers and groundwater in Japan, which had been pointed out to be harmful, it was found that the provisional target values were exceeded at 37 points in 13 prefectures. Since it is not used as drinking water, the Ministry of the Environment will continue to identify emission sources.
The organic fluorine compounds "PFOS" and "PFOA" were used in foam extinguishing agents and paints, but their harmfulness was pointed out and their production and use have been regulated sequentially since 2009. ..
However, since there is a possibility that a high concentration still remains around the facilities that were used before, the Ministry of the Environment has decided that from December last year to February this year, 171 sites such as rivers and groundwater nationwide I checked the situation.
The provisional target value set by the Ministry of the Environment last month was 50 nanograms per liter of water, but as a result of the survey, groundwater in Settsu City, Osaka Prefecture, 1855.6 nanograms, Dakujak River in Okinawa City, Okinawa Prefecture, 1508.1 nanograms, Chofu City, Tokyo It was found that the target value was exceeded at 37 points in 13 prefectures, such as 556 nanograms of groundwater.
Since neither of them is used as water for drinking, the Ministry of the Environment will continue to monitor and identify the emission source as it is not in need of immediate action.