A concentration of dioxin 44 times the legal limit was detected in gases emitted from an incinerator in Toyota, Aichi Prefecture, municipal officials said Friday.

The Shidare waste disposal firm's incinerator in Toyota, Aichi Prefecture, is reported to have emitted a concentration of dioxin 44 times the legal limit.

Gases from the incinerator operated by the Shidare industrial waste disposal company contained 3,500 nanograms of dioxin per cubic meter, about 44 times the government-set limit of 80 nanograms, the officials said. A nanogram is one-billionth of a gram.

There have been no reports of damage to health caused by the carcinogenic substance, the officials said.

The amount of dioxin is the highest ever detected in waste gases in Japan, according to the Health and Welfare Ministry.