中国官方媒体新华社周二称，在东北的黑龙江省，由于能见度非常低，所有高速公路依然关闭。报道称，在哈尔滨，作为一项健康预防措施，中小学依然停课。报道称，哈尔滨部分区域的能见度不足20米。哈尔滨以极度寒冷的冬季、冰雕以及深受俄罗斯影响（因为靠近苏联边境）而闻名。
Coal burning from the start of the winter heating season, vehicle emissions, crop burning and a lack of stronger winds, were factors contributing to the smog, Xinhua reported Monday, citing environmental authorities in Heilongjiang. The northeastern Chinese provinces of Jilin and Liaoning were also struggling with heavy smog on Tuesday, it said.
新华社周一援引黑龙江环境部门的话报道称，冬季采暖季开始后烧煤供暖、汽车尾气排放、焚烧秸秆以及缺少劲风是造成雾霾的主要原因。报道称，东北的吉林和辽宁周二也出现重度雾霾。
As public pressure has mounted in China in recent months, authorities have shown a new urgency in their efforts to control air pollution.
在近几个月来自公众的压力上升之际，政府在控制空气污染方面表现出紧迫感。
