RANKOSHI, Hokkaido -- High levels of toxic arsenic have been found in water at a geothermal power generation research site in Rankoshi, Hokkaido, where a large quantity of steam has been erupting for over a week.
Three people have complained of health problems, such as hydrogen sulfide poisoning.
On Friday, the municipal government lodged a protest against Mitsui Oil Exploration Co., which conducts research at the site in the Niseko mountain range.
