Public security

Fear of Toxic Air and Distrust of Government Follow Tianjin Blasts

Within minutes of the immense chemical explosions that sent apocalyptic fireballs into the night sky over Tianjin, Zhou Haisen, 23, was making arrangements to leave town. He was terrified that poisonous gases would reach his apartment six miles from the scene, and his fears were swiftly reinforced by posts on Chinese social media. So he and his parents fled to his grandmother’s house an hour’s drive away.

Since last Wednesday’s still-unexplained accident, which killed at least 114 people and injured more than 700, the Chinese government has repeatedly insisted that effective measures are being taken to ensure that the air in Tianjin remains safe. But when rain fell on Tuesday, the city’s streets began to foam, and people reported burning sensations on their lips and elbows.