Poluição do Ar

Poluentes aéreos comuns como ozono alteram os cheiros químicos que as formigas usam para identificar membros da colónia, fazendo com que ataquem as suas próprias companheiras de ninho como intrusas. Investigadores na Alemanha expuseram formigas a níveis realistas de ozono e observaram respostas agressivas ao regressarem à colónia. Esta descoberta destaca custos ecológicos ocultos da poluição para além da saúde humana.

31 de janeiro de 2026 Reportado por IA

On the morning of February 1, 2026, parts of Delhi and the National Capital Region (NCR) experienced light rain, while the Air Quality Index remained in the very poor category. The India Meteorological Department (IMD) issued a yellow alert for thunderstorms and fog. Maximum temperatures are expected near 18 degrees Celsius, with minimums around 11 degrees Celsius.

Despite a 90% reduction in stubble burning in Punjab and Haryana, Delhi's air quality remained in the 'very poor' to 'severe' range throughout November 2025. Local pollution sources, including vehicular emissions, are identified as the primary drivers of the capital's persistent smog. The crisis raises concerns about children's health amid winter conditions.

30 de novembro de 2025 Reportado por IA

The Brihanmumbai Municipal Corporation has announced plans to enforce GRAP Stage IV restrictions in Mumbai if air quality exceeds an AQI of 200 for three consecutive days in specific areas. These measures aim to curb rising pollution levels. Construction sites will face closure under these curbs.

Delhi's air quality index slipped back into the 'very poor' category on Thursday, reaching 311, as stubble burning in neighboring states intensified. Farm fires in Punjab hit 351 instances, the second-highest this season, contributing significantly to the pollution. Students protested at Jantar Mantar demanding government action, while authorities reinstated bus parking at a key hotspot to curb emissions.

02 de novembro de 2025 Reportado por IA

Delhi's air has turned more poisonous this season, with former AIIMS director Dr. Randeep Guleria declaring it a public health emergency. People with weak lungs are advised to leave the city if possible. Experts predict worsening pollution due to slow winds and dropping temperatures.