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National Water Quality Monitoring Programme (NWMP) National Ambient Air Quality Monitoring Programme (NAMP)
Laboratory A list of parameters analysed in the Laboratory together with the methodology used for analysis with available instruments are mentioned below:
Methodology
Employed for Analysis of Water Samples
(B) Chemical Parameters
Apart from analysis of water pollutants, the Board is also equipped to analyze air samples. The parameters with their method of estimation is given below:
National Water Quality Monitoring Programme (NWMP) Under the NWMP, the NPCB is monitoring river Dhansiri in Dimapur at 5 (five) stations i.e., full Nagarjan (1796), Purana bazar (1797), near Khatkhati gate (1798), Dillai gate (1799) and Notun Bosti (1800). The Dhansiri river is monitored regularly on a quarterly basis and the results of the analysis are sent to the Central Pollution Control Board, Delhi accordingly. The water quality status of Dhansiri river in respect of the different parameters analysed, for the quarter April 2004 is given below:
All the parameters analysed above are within the prescribed standards. National Ambient Air Quality Monitoring Programme (NAMP) Under NAMP, the NPCB has established 2 nos. of air stations for monitoring the air quality in Dimapur. The stations are located at Bank colony (residential area) and at Hongkong market (residential area but basically a commercial centre). Two air pollutants viz., suspended particulate matter (SPM) and respirable particulate matter (RSPM) are presently being monitored. The monitoring of particulate matter is carried out for 24 hours (8 - hourly sampling) with a frequency of twice a week, to have 104 observations in a year. The datas collected are regularly sent to the CPCB on a monthly basis. The 24 hourly averages of SPM and RSPM for the month of May 2004 in respect of the two air stations are given below:
The 24 hourly averages of SPM and RSPM for the month of May 2004 at both the stations are within the permissible limit. Meteorology plays a vital role in the study of air pollution. Thus, for comprehensive air quality management, the NPCB has established an automatic weather monitoring station at its office-cum-laboratory and has started monitoring meteorological parameters viz., temperature, humidity, rainfall, wind speed and wind direction. The different meteorological parameters recorded in Dimapur during the month of June 2004 are given below;
All rights ® reserved, 2004. Nagaland Pollution Control Board
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