Environment Current Affairs

Environment ministry releases draft National Clean Air Programme

The Ministry of Environment, Forests and Climate Change (MoEFCC) has released draft of National Clean Air Programme (NCAP) proposing multiple strategies to reduce air pollution. It aims to tackle increasing air pollution problem across country in comprehensive manner. The goal of NCAP is to meet prescribed annual average ambient air quality standards at all locations in country in a stipulated time frame. However it does not mention of any specific target and time frame. Under NCAP, the MoEFCC plans to take host of measures to bring down air pollution.

Objectives of the NCAP

  • Augment and evolve effective and proficient ambient air quality monitoring network across country to ensure comprehensive and reliable database.
  • To have efficient data dissemination and public outreach mechanism for timely measures for prevention and mitigation of air pollution.
  • To have feasible management plan for prevention, control and abatement of air pollution.

Measures to be taken by MoEFCC under NCAP

Under proposed NCAP, the MoEFCC will augment air quality monitoring network, identification of alternative technology for real-time monitoring, set up of 10 city super network, indoor air pollution monitoring and management and air pollution health impact studies. Other measures under it also includes air quality forecasting system, issuance of notification on dust management, three-tier mechanism for review, assessment and inspection for implementation and national emission inventory.

Comment

Earlier Union Minister Harsh Vardhan had said that MoEFCC hopes to bring down air pollution in around 100 non-attainment cities by 35% in three years and 50% in five years. Non-attainment cities are those considered to have air quality worse than National Ambient Air Quality Standards (NAAQS). However, NCAP released by MoECC has no reference to the target it internally conceived and publicly announced.

Month: Categories: Environment Current Affairs 2018

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Conditions normal for 2018 monsoon season: Weather scientists

Weather scientists have predicted normal monsoon in June-September 2018 monsoon season as prevailing conditions as well as neutral ENSO were favourable for good monsoon rainfall. India receives 89 cm of rainfall during four-month monsoon season, which is almost 75% of its annual rainfall. In 2017 monsoon season, country as whole had received rainfall that was 95% of its long-period average.

Key Facts

The most important favourable condition for good monsoon is near-neutral to neutral ENSO (El Nino Southern Oscillation) in equatorial Pacific Ocean, off coast of South America. Global climate models are showing near-neutral conditions prevailing in Pacific Ocean and it will remain this way through most of the year.

Moreover, La Niña conditions are present and equatorial sea surface temperatures (SSTs) are below average across central and eastern Pacific Ocean. The transition from La Niña to ENSO-neutral is most likely during March-May season, with neutral conditions likely to continue into second half of year. SST anomalies in eastern tropical pacific are ENSO-neutral during coming summer and hence normal monsoon is expected this year.

ENSO (El Nino Southern Oscillation)

ENSO refers to anomalies in SSTs in Pacific Ocean off coast of South America which has sometimes been observed to have near-decisive impact on monsoon rainfall. In El Nino, a warmer than usual SST is observed in Pacific Ocean off coast of South America . This condition is associated with suppressed monsoon rainfall in India. La Nina is opposite ENSO and is more favourable for monsoon. It is known to help monsoon rainfall in India. When anomalies (deviations from usual SST in the Pacific Ocean) are too small or absent, monsoon rainfall over India is normal.

Month: Categories: Science and Technology Current Affairs - 2018

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