Gurgaon: From Sunday, district air quality has been recorded at a moderate level with the air quality index (AQI) between 101 and 200.
While air quality is expected to deteriorate post-diwali further, experts show that the data is based on only five monitoring systems Continuous ambient air quality (CAAQMS) – Real time monitor monitor – which covers an area of ​​1,258 square kilometers.
Delhi neighbors with an area of ​​1,484 square kilometers have 38 air quality monitors, experts say while emphasizing the need for more air monitors – at least 32 in accordance with the district geographical region – to record pollutants, analyze the database for mitigation measures.
Network Guidelines for the Quality of Central Pollution (CPCB) Air quality guidelines state that monitoring stations are installed based on the population.
The area with 10.00,000 to 50.00,000 population, he stated, must have a minimum of five CAAQMs and three manual monitors.
In accordance with the 2011 census, this district has a 15.1 lakh population.
“According to the Practical Rules of CPCB 2003 to determine the number of monitoring stations, it must have a minimum of eight monitoring stations.
It is important to note that monitoring networks must represent and meet different monitoring goals such as tracking air quality improvements and providing real time insights to the public,” Tanushree Ganguly , The Lead of Energy, Environmental and Air (CEEC) program), told toI.
Experts also emphasize the need for a mix of manual and automatic quality monitoring stations.
Manual Station, Experts said, provided data for critical pollutants such as PM10, PM2.5, NO2, SO2, Ozone and Co., which are considered for the implementation of a multilevel action plan (grap) because they have short-term health impacts (other than that).
For the long term) on those who suffer from heart and breathing and asthma conditions.
This pollutant, experts add, has a direct trigger effect during the episode of Smog.
“Actually, the existing CPCB standards talk about the combination of CAAQMS and manually operated stations, except for ITO stations in Delhi which are operated by CPCB, maybe there are no other stations in all countries that meet the norms.
He also must keep in mind that CAAQMS station.
It is for instant data but manual station data is mainly used to measure the level of toxicity and health impact studies, “said Dr.
Diparkar Saha, said the former CPCB head.
Five Aqi stations, experts also said, not distributed properly in all districts.
Aqi Station in Gwaldahari is run by the Department of Indian Meteorology, while the station in Sadan Vikas, Teri Gram, Sektor-51 and Manesar to calculate the AQI daily is under the Haryana District Pollution Control Board (HSPCB).
These stations, however, do not cover all district zones and thus do not provide an ideal picture when calculating data.
“More stations must be arranged in areas where most people live, the pollutants they expose and the need for a daily warning system.
Variations between various areas of the city need to be taken into account.
Until now, three stations in GwalPahari, Sector-51 and Teri Gram are in one The city side while Sadan Vikas only gets data from the old city.
Thus, the stations are not ideally located, “Sachin Panwar, an independent air quality scientist based in the city, said.
Shubhansh Tiwari, a research partner at the Amity Center for air pollution control, meanwhile, shows that monitoring station maintenance is also not systematic.
When approached, HSPCB officials said they would install a new station in accordance with priority.
“Of course, we will expand our station network in accordance with our priorities and requirements.
We may not build a new station this season.
Will review the requirements and establish after that,” Narayana said, HSPCB secretary.