Gurugram: Industries in the state’s National Capital Region (NCR) districts that are yet to switch to piped natural gas (PNG) as an alternative to traditional fuels, despite the availability of PNG, will be liable for closure as per an order by the Central Pollution Control Board (CPCB).Officials in the Haryana State Pollution Control Board (HSPCB) said they have identified such industries and begun sending closure notices to individual units. In Gurugram, out of more than 625 units, at least 74 units have adopted PNG, while at least 160 are in process. Pet-coke and furnace oil, frequently used earlier, were banned in Haryana, Rajasthan and Uttar Pradesh by the Supreme Court in 2017. Also Read – After eight years, businessman arrested for kidnap & murderIn the context of deadly air pollution levels in Gurugram, the National green tribunal (NGT) has recommended allowing less number of new factories to be set up in and around Gurugram. Moreover, it has also suggested to the Central Pollution Control Board (CPCB) and the state government that all the industrial units that are running on coal should be barred from functioning. The strict observation comes at a time when a large number of industrial units are already facing action by the public authorities. Also Read – Two brothers held for snatchingsTaking stern action against those industrial units causing pollution, the Haryana state pollution control board (HSPCB) had earlier sealed 30 industrial units. The strict measures against the industrial units were anticipated as the public agency had serviced notices to various industrial units that were causing pollution. Over 800 such units have been issued notices. Moreover, based on the evaluation, the HSPCB has also categorised industries into various zones based on the pollutions of these units. Around 230 units have been placed under the red category the highest level for those causing maximum pollution.