Vehicular emissions, industry, construction and residential fuel burning, dust and sea salt burning, and the air flow from the neighboring states of Punjab and Haryana wherein the straw burning is practiced in the majority are a few causes of pollution in Delhi and its adjoining Noida, Gurugram, Ghaziabad, and Faridabad.
It was anticipated that cracker burning during Deepawali festival will also deteriorate the air quality of Delhi and NCR. However, the ban on firecracker sale by the Supreme Court of India benefitted as it turned out to be successful in curbing the contamination levels.
But prohibition was only one minor advance to limit the consistently decaying air quality. Some more advances are required to be taken to maintain a strategic distance from individuals take in the gagging air.
According to Skymet Weather, prior, the reason for the increased pollution levels in the capital of the country and its nearby regions was a Depression that was moving over the North Bay of Bengal and the eastern parts of the nation.