Dangerous smog continues for the Delhi, India.
Last week we reported about how dangerous the smog had become in the capitol city. There have been some minor improvements but overall the air still very polluted.
Astounding Himawari-8 GeoColor imagery shows a mix of pollution, smoke and clouds over #India today. The hazardous #smog in the region has gotten worse over the last several years with the high levels of pollution and poor air quality. More imagery: https://t.co/KAZIStjKGt pic.twitter.com/1EoXxZ8odC
— NOAA Satellites (@NOAASatellites) November 9, 2017
— Climate Central (@ClimateCentral) November 13, 2017
The November 15th, 2017 Air Quality Index (AQI) measured at the United States Embassy in Delhi, India was 234, which is in the category of “Very Unhealthy.” This category means that, for those exposed to the outdoor air, it could be deadly. Specifically, there would be “significant aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary disease and the elderly; significant increase in respiratory effects in general population.”
For air quality in this category, its recommended that active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion. Its important to note that the AQI can vary across the city, but generally the values have been especially very high for Dehli.
Delhi is already known to have poor air quality – its one of the most polluted cities in India – but why now is it so exceptionally bad?
Its a combination of factors, one of them being stagnant weather. The city and most of the region continues to deal with a very stagnant and dry weather pattern, which is typical during the colder months. But what has likely made it even worse is, on top of the poor weather, vehicle and factory pollution, farmers have been burning rice patties in nearby regions. That air has travels and settled across the valley where Delhi resides.
For WeatherNation, I am Meteorologist Marcus Walter.