[To learn English] India tightened anti-pollution measures in Delhi and adjoining areas after the capital's air quality deteriorated to the season's worst. The Commission for Air Quality Management invoked stage four, the highest level, of the Graded Response Action Plan for Delhi and surrounding areas on Saturday evening, according to an advisory by India's environment ministry. 印度首都德里空气质量恶化至本季最差水平后，印度加强了德里及其周边地区的污染治理措施。 根据印度环境部发布的公告，空气质量管理委员会于周六晚间启动了德里及其周边地区分级响应行动计划的第四阶段，即最高级别。 LearnEnglishLeave a remark