Air quality is not good enough in India.
As of January 1, the country had a maximum air quality index of 1.8, well above the WHO’s 3.5, which is considered a safe level.
This is the highest index of the five most hazardous air pollutants, according to a study by the World Health Organisation, the World Meteorological Organisation and the United Nations Environment Programme (UNEP).
The WHO says India has the highest number of cases of acute respiratory infections (ARS) in the world, and the highest mortality rate of people with these conditions.
The WHO has been urging people to wear masks indoors and to wear them to work.
This month, India announced a new law to ban all outdoor air pollution.
In an effort to fight the problem, Prime Minister Narendra Modi has launched the Indoor Air Quality Index to measure air quality in cities and towns across the country.
In the city of Chandigarh, which covers an area of 1,300 square kilometers, the index stands at 1.6.
In contrast, in the city-state of Odisha, where about 1,400 square kilometers are covered, the pollution index is 1.2, compared to a national average of 1 in the country of 2.2.
The state’s air quality average is 2.8.
The situation has worsened over the past month, according a survey by the Indian Institute of Science (IISc) and the World Bank.
In a report published in April, the IISc said the country’s air pollution levels have been “exacerbated” by poor building work.
“India is among the top 10 worst air pollutants in the OECD,” the report said.
“We have one of the worst population densities, one of our biggest and worst air pollution sources, and one of highest rates of air pollution per capita in the industrialised countries.”
According to the WHO, India’s annual air quality level was set at the “hazardous” category in 2016.
The latest figures published in November said the average daily ambient air pollution in India was at 5.9 micrograms per cubic meter, with the maximum value at 25.7 microgrammes per cubic metre.
The government has been criticised for its failure to implement the law, and for failing to implement measures to curb the rising levels of PM2.5 particles, or small particles, in some areas.
The government has so far failed to reduce PM2, or microscopic particles, pollution, even as it has set aside more than $1.5 billion for the environment.
The World Health Organization says India’s air is particularly hazardous because of the construction of many new housing units and new roads.
The WHO said the situation is likely to worsen if new construction continues and air quality continues to deteriorate.
The UNEP report, which analysed data from more than 500 cities and townships across the Indian subcontinent, said that air quality levels were worse in areas where new residential buildings were constructed.
“In the cities and rural areas, this is especially pronounced because of a large number of houses,” it said.
It said there were about 30,000 homes in the southern part of the country, including Delhi, Kolkata, Ahmedabad, Gurgaon, Ahmednagar, Bhubaneswar, Lucknow, Kanpur, Pune, Luckpreet, Varanasi and Gurgaonic.
In Delhi, there were more than 15,000 new buildings, with an average of 15 microgram levels per cubic meters.
“It is highly likely that these new homes are responsible for the high levels of air pollutant in Delhi,” the UNEP said.
According to a report by the International Centre for the Study of Environment (ICSE), a non-governmental organisation, the air quality of Delhi’s Delhi Metro has worsened.
The ICSE said Delhi’s pollution levels are now “hazardously” high in many parts of the city, especially in parts of south Delhi, where construction has been carried out.
The ICSE also found that Delhi has the worst pollution of any major city in India with a maximum PM2 particulate concentration (PM2.6) of about 2.7 microns.
This means that one square meter of air contains more than 25 microgram particles.
According the ICSE, there are more than 100 million people in India, of which 20 million are living in the cities.
India is the world’s second-biggest polluter after China, with about 3.6 billion people.