Air Quality

Researchers have found unexpectedly high levels of methylsiloxanes, a class of silicone compounds, present in air samples from cities, rural areas, and forests around the world. The study links much of the pollution to vehicle emissions from engine oil additives. Experts warn that daily human inhalation of these substances may exceed exposure to other known pollutants like PFAS.

2026년 04월 24일 AI에 의해 보고됨

Researchers at the University of Vienna have determined that land releases more than 20 times as many microplastic particles into the atmosphere as the oceans, challenging prior assumptions. Their study, published in Nature, used global measurements to correct overestimated emission models. The findings highlight land as the dominant source, though uncertainties persist.

Atmospheric methane concentrations rose at an unprecedented rate in the early 2020s, driven by a weakened natural removal process and increased emissions from wetter landscapes. Scientists attribute much of the spike to a drop in hydroxyl radicals during 2020-2021, combined with climate-driven boosts from wetlands and agriculture. The findings underscore the interplay between atmospheric chemistry and weather patterns in global greenhouse gas trends.

2026년 01월 30일 AI에 의해 보고됨

Delhi's average air quality index (AQI) in January 2026 so far stands at 307, marking the second-best January air quality in five years. According to a CREA report, the month has seen two moderate days, 12 poor days, 14 very poor days, and two severe days. The data is sourced from the Central Pollution Control Board.

A month after December's severe smog crisis, Delhi-NCR faces another intense cold wave with dense fog and very poor air quality on January 6, 2026. Noida schools are closed to protect students, while authorities issue health advisories amid ongoing winter hazards.

2026년 01월 05일 AI에 의해 보고됨

Delhi remains under a cold wave with dense fog and 'poor' air quality for a second day on January 5, prompting airline warnings for flight delays. The IMD forecasts a 2-3°C drop in minimum temperatures across northwest India over the next four days.