Tóquio, Japão – 5 de setembro de 2025, Mainichi Shimbun – Pesquisadores japoneses encontraram uma ligação direta entre o aumento da concentração de poluentes atmosféricos conhecidos como PM 2.5 e o crescimento no número de internações por infarto agudo do miocárdio (IAM). As partículas PM 2.5, com diâmetro de até 2,5 micrômetros, são capazes de penetrar profundamente nos pulmões e na corrente…

Yang thought the monitor’s off, but I kept wondering if it’s really just the fireworks and firecrackers. It feels like growing up is learning to see the beauty in the chaos, while also noticing the smoke it leaves behind.

This was the PM2.5 table for Chinese New Year in China, where the numbers rose shockingly.

Cut to today, one or two days after the Lunar New Year festival has passed.

In the ever-evolving canvas of nature, the atmosphere mirrors constant change. Surprisingly, Earth's early days knew no oxygen; its birth, an orchestration by blue-green algae 3 billion years ago, birthed the first aerobic organism—a bacteria. Initially deemed combustible, oxygen now constitutes 21% of atmospheric gases, sourced primarily from plants and microbes.

Our air, a complex blend of nitrogen, oxygen, water, carbon dioxide, ozone, and trace compounds, is adorned with extras like smoke, dust, acid droplets, and pollen. Its composition dances with seasons, weather, time, location, and elevation.

Enter air pollutants, categorized into gases, particulate matter, and microorganisms. Carbon monoxide, ground-level ozone, lead, nitrogen dioxide, and sulfur dioxide top the list.

Particulate Matter (PM) takes center stage with PM 2.5, fine particles causing respiratory issues, and PM 10, coarse dust particles impacting health. Sources range from chemical reactions to construction activities, revealing a spectrum of consequences from respiratory problems to cancer.

Recent studies link air pollution to a broader range of ailments, from strokes to mental health issues, raising concerns about the potential impact on every cell in the body. NASA images depict the gravity of air pollution, a tangible threat with far-reaching consequences.

As we navigate this invisible hazard, it's crucial to recognize the real dangers of air pollution. Stay tuned for my next article, "The Truth about Air Purifiers," exploring solutions to safeguard our air quality.

มิตซูบิชิ อีเล็คทริค ลอสไน ระบบระบายอากาศแลกเปลี่ยนความร้อนภายในบ้านและอาคาร เทคโนโลยีที่สามารถทำงานได้ครบทั้งระบายอากาศ กรองอากาศ และเติมอากาศบริสุทธิ์ภายในเครื่องเดียว อีกตัวช่วยสำคัญในการสร้างคุณภาพอากาศที่ดี ช่วยให้เกิดการหมุนเวียนของอากาศภายในพื้นที่ปิด ลดการสะสมของเชื้อโรคและสิ่งเจือปนต่างๆ เช่น ฝุ่น เชื้อไวรัส แบคทีเรีย ก๊าซคาร์บอนไดออกไซด์ สารก่อภูมิแพ้ เหมาะกับทุกพื้นที่…

Pensi che chiuderti in auto ti protegga dall’inquinamento e dallo smog? Sbagliato

‘Mi sento tranquillo e sicuro, chiuso nella mia auto nel traffico.’ Ma purtroppo la realtà è diversa… L’abitacolo di qualsiasi auto è un piccolo ambiente con fonti di inquinamento interne ed esterne. E siccome è piccolo, l’aria diventa viziata in un attimo. Ecco cosa scrive il dottor Aldo Ferrara, professore di malattie cardio-polmonari, Università degli Studi di Siena: ‘Nell’immaginario…

The effect of contamination with material particles PM 10, PM 2.5 on vegetation is investigated in this paper. Reduced photosynthesis light, increased leaf temperature due to changes in surface optical properties, impaired respiration, impaired stomatal activity, reduced leaf area in the immediate vicinity of contaminants, reduced concentrations of photosynthetic pigments, chlorophyll, and directly plant productivity are all consequences of vegetation particles. Changes in soil chemistry, composition, or foliar chemistry result in pollution caused by road traffic on vegetation. Due to the rapid dispersion of air pollutants from automobiles, the effect on vegetation occurs 1 km from the lane. Pollutants are captured by the leaves of plants, and air pollution has a direct impact on their assimilative organs. The material particles PM 10 (is a mixture of very small particles with a diameter of 10 micrometres or less), temperature, relative humidity, and wind speed were monitored with the weather station from the Polytechnic University of Bucharest, Fa. The absorption of material particles by the leaves of plants resulted in a decline in material particles in the presence of vegetation. The amount of particulate contamination is influenced by weather conditions; for example, when the temperature is high, the sky is dark, and there is little wind, PM 10 and PM 2.5 concentrations are higher.

Optical and electron microscopy were used to demonstrate the structural aspects of the PM10 and PM 2.5 material particles.

Beijing smothered by hazardous yellow smog

The poor air quality was due to a sandstorm from northern Mongolia, carried south by the wind and reducing visibility in Beijing to less than 1,000 metres, state media reported. Beijing was cloaked by a thick yellow smog on March 15 with pollution surging to hazardous levels as a sandstorm swept across China’s capital. City residents used goggles, masks and hair nets to protect themselves from…