About CPCB

• The Central Pollution Control Board (CPCB), statutory organisation, was constituted in 1974 under the Water (Prevention and Control of Pollution) Act, 1974. 
• Further, CPCB was entrusted with the powers and functions under the Air (Prevention and Control of Pollution) Act, 1981.
• It serves as a field formation and also provides technical services to the Ministry of Environment, Forest and Climate Change of the provisions of the Environment (Protection) Act, 1986. 

Why in News?

• According to the Central Pollution Control Board data, the air quality in the National Capital Delhi has slightly improved. 
• As per SAFAR, a forecasting agency under the Union Ministry of Earth Sciences, the quality is likely to improve further for the next two days due to a drop in stubble fire counts,  reduction in local emissions, and moderate dispersion of pollutants leading to dilution of near-surface pollution.

reference:

https://newsonair.gov.in/News?title=Delhi%26%2339%3bs-Air-Quality-slightly-improves-%3a-CPCB&id=450446