瑞士监测机构IQAir发现，新德里在周六拥有所有主要城市中最糟糕的空气质量，促使印度当局将首都附近的学校转为线上授课，并敦促居民居家办公，因为排灯节的烟花爆竹威胁着进一步加重雾霾。
IQAir found New Delhi had the worst air quality of any major city on Saturday, prompting Indian authorities to shift schools near the capital online and urge residents to work from home as Diwali firecrackers threaten to deepen the smog.
根据瑞士监测集团IQAir的数据，就在排灯节前一天，有毒雾霾笼罩印度首都之际，新德里在周六早些时候成为全球污染最严重的主要城市。这一排名使得德里排在全球追踪的所有其他大城市之前，而当局此前已将这种状况视为危险状况。
New Delhi became the world's most polluted major city on Saturday morning, according to the Swiss monitoring group IQAir, as toxic haze settled over the Indian capital just a day before Diwali. The ranking placed Delhi ahead of every other large city tracked globally, with authorities already treating conditions as hazardous.
随着污染水平上升，印度官员下令首都及周边地区的学校将课程转为线上，并鼓励居民居家办公。这些警告是在印度教灯节排灯节到来之前发出的。排灯节在周日举行，传统上伴随着广泛燃放烟花爆竹的现象，当局称这每年都会进一步恶化空气质量。
Indian officials ordered schools in and around the capital to move classes online and encouraged residents to work from home as pollution levels climbed. The warnings came ahead of Diwali, the Hindu festival of lights, which falls on Sunday and is traditionally marked by widespread firecracker use that authorities say further worsens air quality each year.
德里的冬季污染危机是由汽车尾气、建筑扬尘、将颗粒物锁在地面附近的更低气温以及邻近邦的季节性农作物秸秆焚烧等多种因素共同导致的。卫生官员一再敦促包括儿童和老人在内的易感居民在节日期间减少户外活动。
Delhi's winter pollution crisis is driven by a mix of vehicle emissions, construction dust, cooler temperatures that trap particles close to the ground, and seasonal crop-stubble burning in neighbouring states. Health officials have repeatedly urged vulnerable residents, including children and the elderly, to limit outdoor exposure during the festival period.