The green NGO also referred to "severe" limitations to current Index and said it is limited in its scope, lacks transparency and is not designed to make air quality data widely available or useful to citizens.
"NAQI can be a powerful tool if implemented correctly. Accurate information about the quality of air we are breathing is a crucial first step in the public campaign for clean air," said Nandikesh Sivalingam, Campaigner, Greenpeace India, which has recently been mired in controversy.
"The Index data also needs to be used more proactively, with adequate information shared about precautionary measures that the public can take while the authorities take action to address the root causes of air pollution," said Sivalingam.
Greenpeace India urged the government to make urgent improvements to NAQI as a first step towards securing what it has referred to as citizens' "birthright to clean air". A recent status check on NAQI implementation by Greenpeace found discrepancies in the investment in infrastructure.
"Even in Delhi, NAQI data is rendered meaningless as the current information dissemination system is unreliable, no agreed steps to be taken by local authorities on days with heavy pollution and no plan for how the data can be used to inform citizens' fight against pollution," the NGO said in a statement.
Referring to the recent WHO study of world's 20 most polluted cities in which 13 are in India, Greenpeace India said that it is a clear indication of the urgent need to act on air quality.
