द्वितीयक कण प्रदूषण का मुख्य कारण: CAQM रिपोर्ट

The CAQM report identifies secondary particulate matter (27%), transport (23%), biomass burning (20%), dust (15%), and industrial emissions (9%) as the major contributors to Delhi's winter pollution.

Secondary particulate matter forms when primary particulate matter interacts with ammonia, largely originating from fertilizers and livestock excreta. It is a major concern because the CAQM report identifies it as the largest contributor (27%) to Delhi's winter pollution.

The report emphasizes the need for a uniform and unanimous opinion on air pollution sources. By establishing a clear understanding of the primary contributors, the CAQM aims to facilitate the development and implementation of more effective and targeted policies to combat air pollution.

The Supreme Court directed the CAQM to prepare the report to address the worsening air quality index (AQI) in the Delhi-NCR region. The court's intervention reflects the severity of the air pollution crisis and the need for effective measures to improve air quality.

According to the CAQM report, biomass burning contributes 20% to Delhi's winter pollution. This highlights the significant impact of agricultural and other burning practices on the region's air quality.

The CAQM report suggests that policies should prioritize the reduction of secondary particulate matter, given its significant contribution to pollution. This may involve regulating ammonia emissions from fertilizers and livestock. Addressing transport emissions and biomass burning are also crucial.

Recent developments include increased monitoring of air quality through sensors, the implementation of the Graded Response Action Plan (GRAP) during peak pollution, and efforts to promote electric vehicles. The Supreme Court's involvement in directing policy is also significant.

Dust contributes 15% to Delhi's pollution, according to the CAQM report. Mitigation measures include controlling construction activities, increasing green cover, and implementing dust suppression techniques on roads and open areas.

Ammonia, which contributes to the formation of secondary particulate matter, largely originates from fertilizers and livestock excreta. This highlights the link between agricultural practices and air pollution in Delhi.

The CAQM report is significant because it provides a data-driven understanding of the major pollution sources, enabling policymakers to develop targeted and effective long-term solutions. It emphasizes the need for uniform understanding and collaborative action.