News Analysis India

Tag: Central Pollution Control Board

  • Centre to produce oxygen from nitrogen generators at 30 industries

    Express News Service
    NEW DELHI: To further augment the availability of medical oxygen, the Centre is identifying the industries having spare nitrogen plants to explore the feasibility of converting them to produce oxygen.

    The Central Pollution Control Board (CPCB) with the help of State Pollution Control Boards (SPCBs) has identified such potential industries, wherein existing nitrogen generation plants may be spared for the production of oxygen.

    Consultations have been held with potential industrial units and experts. About 30 industries have been identified, and efforts have begun to modify nitrogen plants for the production of medical oxygen. Some of these plants can be shifted to nearby hospitals for supplying oxygen and some plants, where it is not feasible to shift the plants, can produce oxygen on-site.

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    M/s UPL Ltd converted one 50 Nm3/hr capacity Nitrogen plant to produce oxygen using Zeolite Molecular Sieve and installed it at L G Rotary Hospital, Vapi(Gujarat). 

    This plant is producing 0.5 ton/day of oxygen and is operational since April 27. UPLLtd. is also under the process of conversion of three more plants. On conversion to oxygen plants, these plants will be installed at hospitals in Surat and Ankleshwar.

    In the existing nitrogen plants, replacing Carbon Molecular Sieve (CMS) with Zeolite Molecular Sieve (ZMS) and few other changes such as installation of oxygen analyzer, change in control panel system, flowvalves oxygen for medical use can be produced.

    With the availability of ZMS, such a modified plant can be set up in 4-5 days while installation of a new oxygen plant may take a minimum of 3-4 weeks. Oxygen produced in on-site plants has to be compressed and filled in cylinders/special vessels using a high-pressure compressor for transporting to hospitals.

  • Coal-fired brick kilns cannot be allowed to operate in NCR during severe pollution: NGT

    The tribunal had earlier rejected a plea to allow brick kilns running on #39;Zig-Zag #39; technology in NCR saying their operation will have a disastrous effect on the air quality.

  • Air quality ‘very poor’ in Ghaziabad, Noida; ‘poor’ in Gurugram, Faridabad

    By PTI
    NOIDA: The air quality was recorded in the “very poor” category in Ghaziabad, Noida and Greater Noida, while it was “poor” in Gurgaon and Faridabad, according to data issued by a government agency on Saturday.

    Pollutant PM 2.5 and PM 10 remained prominent in the air of the five immediate neighbours of Delhi, according to the air quality index (AQI) maintained by the Central Pollution Control Board (CPCB).

    According to the index, an AQI between zero and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’.

    The average 24-hour AQI at 4 pm on Saturday was 338 in Ghaziabad, 302 in Noida, 308 in Greater Noida, 278 in Faridabad and 281 in Gurgaon, according to CPCB’s Sameer app.

    On Friday, it was 423 in Ghaziabad, 415 in Noida, 420 in Greater Noida, 392 in Faridabad and 342 in Gurgaon.

    The CPCB states that an AQI in the ‘poor’ causes breathing discomfort to most people on prolonged exposure, while ‘very poor’ may cause respiratory illness on prolonged exposure.

    The AQI for each city is based on the average value of all monitoring stations there.

    Ghaziabad, Gurgaon and Noida have four such stations while Greater Noida and Faridabad have two stations each, according to the app.