Any news on long-term health risks from chemical exposure/half-lives/concentrations/wind direction etc? Last I heard the wind was blowing sea-wards after the bl

Any news on long-term health risks from chemical exposure/half-lives/concentrations/wind direction etc? Last I heard the wind was blowing sea-wards after the blast, but there are a lot of people in Tianjin (and Beijing?) that could be effected if chemical contaminants stick around...