Tianjin has set up a column on environmental violations in major media◆ hubei province limits approval and early warning of environmental impact assessment for gas-related projects in cities with rising average PM10 concentration◆ chongqing notified 14 substandard dust control units◆ shijiazhuang, hebei province, announced the ranking of ambient air quality in the second quarter, as well as the awards and punishments◆ "four innovations" to combat air pollution in baoshan district, Shanghai