1月29日，两名市民戴着口罩在雾霾天气中骑行。当日，天津持续雾霾天气。天津市气象台29日10时42分继续发布霾黄色预警信号，预计未来24小时天津地区仍将持续能见度小于3000米的霾,空气污浊。新华社记者 岳月伟 摄 On January 29,,Two people wore masks in the fog haze weather ride.the,Tianjin continuous fog haze weather.Tianjin meteorological observatory 29 10 42 points continue to release haze yellow warning signal,The expected future 24 hours in tianjin will continue visibility of less than 3000 meters of haze,Air dirty.The xinhua news agency YueYueWei perturbation