Ghaziabad, Dec 14 (KNN) There were over 300 polluting industries and about 100 brick kilns in Ghaziabad, and none of them conformed to the Pollution Control Board standards, pointed the Ghaziabad residents urging IIT-Delhi to conduct a detailed study of air polluting sources in this Delhi suburb in view of the deteriorating air quality in the National Capital Region.

A residents’ association in Ghaziabad said that “the effluent treatment plants are said to be installed in all industries, but we have our doubts if they are in operation round-the-clock,” he said.

According to a media report, in a letter to IIT-Delhi, Col. Tejendra Pal Singh Tyagi (retd), president of the Apartment Owners’ Association Federation, said PM1 (particulate matter of size less than 1 micro metre) has been found in the NCR.

Col. Tyagi said the World Health Organisation had in a study in 2010 said that Ghaziabad was among the top five places in India where the air was heavily polluted.

He said particulate matter was carcinogenic and it gets deposited in the lower portion of the lungs, thereby reducing lung capacity which was an irreversible problem.

He said the association had asked IIT-Delhi in July to conduct a study, but five months have passed and there has been no response.

“We have been given to understand that diesel emissions, burning of biomass, polluting air discharge from factories, dust from the construction industry etc. contribute to PM2.5 and PM1. Therefore, you are requested to carry out a study and give us an idea of the approximate percentage contribution of these sources towards the formation of PM2.5 and PM1,” he said, quoting from the letter. (KNN Bureau)