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Last year, I visited a friend in Kano, one of Nigeria’s fastest-growing cities. The air felt dry and dusty, but not particularly smoky or smoggy. I assumed, like many people do, that if I couldn’t see or smell pollution, the air couldn’t be that bad. But I was wrong. A groundbreaking 2025 study from The Lancet Planetary Health has made me—and many scientists—rethink what we know about air pollution. The study, by Chi Li and a global team of researchers, focused on PM1 pollution: ultrafine particles that are smaller than 1 micron in diameter. Unlike the more commonly monitored PM2.5, PM1 is small enough to penetrate not just your lungs, but your bloodstream and even your brain. This stuff isn’t just a lung problem—it’s a whole-body problem. And for cities like Kano, it may be the most overlooked environmental health threat we face today. PM1: The Invisible Danger To put this into perspective: A human hair is about 70 microns wide. PM2.5 (which most air monitors track) is 2.5 microns or ...

Plastics are known to have great negative impact on the environment. Discussions and arguments arise among environmentally conscious individuals,whether plastics should be banned or recycled. Though plastic take almost forever to decomposed,it has an amazing quality for easy melting and transformation. Here are some effective ways to recycled plastic: 1.Separate Waste Bin For Degradable And Non-degradable waste. Separate waste bins should be kept in public areas,houses,hospitals and schools for collection of different kind of waste,in that way it should be easy for recycling agencies to know which waste should be dump in land fills,and which contains only Plastics that are to be recycled. As illustrated in the picture above,the yellow waste bin can be set aside for plastic waste,and the rest of the waste bins can be set aside for biodegradable wastes like spoiled food, vegetables e.t.c. 2.Get In Touch With Plastic Recycling Agencies: Plastic Recycling Agencies should be contacted immed...