Hazardous substances have been detected from two drainage outlets near the blast site in Binhai New Area, the Ministry of Environmental Protection said on Friday morning, refuting rumors that the dangerous particles have polluted the surrounding area.
The harmful pollutants, including chemical Oxygen Demand (COD) and cyanide - a highly toxic chemical compound, were found three times and eight times higher than the usual levels, according to the ministry.
The Tianjin municipal environmental watchdog has set up 22 monitoring stations, of which five are checking water quality.
The drainage outlet to the Bohai Sea has been closed, and the bureau is conducting an investigation into water quality.
A team of 214 military specialists in handling nuclear and biochemical materials arrived in Tianjin Thursday afternoon following Wednesday’s warehouse explosion, thought to have been caused by volatile chemicals on site.
In Beijing, about 150 km northwest of Tianjin, the municipal government said Friday that the explosions didn’t affect air quality in the capital.
Winds from the northwest that the capital is currently experiencing are keeping the city clear of harmful pollutants, the Beijing Environmental Protection Bureau said.
The capital’s monitoring stations in the southeastern region have not detected anything unusual in the air quality nor any sudden rise of air pollutants.
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