Graded Response Action Plan or GRAP usually enforced to bring down the pollution levels. It is an emergency response plan which is only implement when air pollution reaches a certain threshold. Released in 2017 by the Environmental Pollution Prevention and Control Authority and the Delhi government, it is a step-by-step escalation and update plan to improve Delhi-NCR’s deteriorating air quality
Once enforced, this category of GRAP includes heavy fines on garbage burning, strict enforcement of pollution control regulations in such kilns, regular sweeping and water sprinkling on roads, and a ban on firecrackers
GRAP levels increased when AQI crosses "Very Poor" threshold, Under this category, the use of diesel generator sets is prohibited, parking fees increases, bus and metro services are increased, people are encouraged to avoid burning waste. People with respiratory and cardiac conditions are advised to restrict their outdoor movement.
GRAP measures gets further escalated when AQI reaches to “severe” category
In such a situation, brick kilns, hot mix plants, and stone crushers are closed. Power generation from natural gas is ramped up. People are encouraged to use public transport and the mechanised cleaning and sprinkling of water on roads are carried out more frequently.
GRAP measures for the "severe + or emergency" classifications are.
Heavy vehicles like trucks are stopped from entering NCR except essential commodities. Construction work is suspended. Government takes a call on implementing the odd/even scheme for private vehicles. The government also sets up a task force to decide if additional steps, including shutting down schools and work from home policies.
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