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| Last Updated:: 14/02/2016





               Air pollution in Dimapur is increasing each year, surpassing the national permissible limit. The World Health Organization (WHO) says that around 7 million deaths in 2012 were caused by both indoor and outdoor pollutions.

               The WHO terms air pollution the world’s largest single environmental health risk. In a data released in 2014, WHO estimates that “around 7 million people died – one in eight of global deaths – as a result of air pollution exposure” in 2012. The data links 4.3 million deaths to indoor air pollution caused by households cooking over coal, wood and biomass stoves, while 3.7 million deaths to outdoor air pollution.

               In Nagaland, there is no data in place to ascertain the intensity of air pollution impact on health. According to Dr. Sao Tunyi, Epidemiologist at Directorate of Health & Family Welfare, the effect is there, but it’s very difficult to measure.


               Nonetheless, it is indisputable that air pollution level in the state is increasing, particularly in Dimapur and Kohima. For Dimapur, according to the Nagaland Pollution Control Board (NPCB), concentration of Respirable Suspended Particulate Matter (RSPM) and Suspended Particulate Matter (SPM) at both Dhobinullah and Bank Colony exceed the permissible limit.


           According to National Ambient Air Quality Standards 2009, the annual average concentrations of RSPM should not exceed 60 micrograms per cubic metre (µg/m3); however, Dhobinullah recorded 158 and Bank Colony 111 in 2014, surpassing the 2013 record of 116 and 89 respectively. Meanwhile, in 2014, the annual average of SPM concentrations at Bank colony was 186 and 295 at Dhobinullah, crossing the national limit of 140 µg/m3. The SPM concentrations in the two locations were 156 and 254 respectively in 2013.


               Going by the WHO report, Naga families are exposed to serious health threats since most homes still use firewood and coal for multiple purposes. Many of the kitchens are without proper chimneys and we inhale lots of smoke. Proper chimney is very important in the villages since our Naga society stay in the kitchen more than any other rooms.


         Apart from the emissions from motor vehicles – the major pollutant, non black topped roads itself is a pollutant. Health impacts needs to be assessed more scientifically.


21 January 2016 -Report 

 Source: Nagaland Post

                    Increase in numbers of respiratory diseases like Silicosis in Dimapur in recent years, raise concern among the denizens of Dimapur. Nagaland Pollution Control Board (NPCB) records stated that concentration of Respirable Suspended Particulate Matter (RSPM) and Suspended Particulate Matter (SPM) in the city is above 100 µg/m3 which exceeds way above the permissible limit of 60 micrograms per cubic metre (µg/m3).

                    The main causes for the increase of particulate matter in the dry season are because of the dust- from stone crushers and bad roads. Moreover, constructions activities, vehicular emissions, burning of wastes, construction and commercial activities add rising air pollution in the city.

                    Dimapur stands first as a polluted city in Nagaland while Kohima stands at second position. Bad roads condition is one of the factors for which dust pollution is increasing in the city, especially at Purana Bazaar, Kuda Village and Nagaland gate areas. Another major pollutant is non black topped roads . When one drives on dusty roads, there are pedestrians inhaling the dusts. These small particles gets into the lung, which raises serious health conditions.