Author name: Dr. Ethan Calderon

Dr. Ethan Calderon is an environmental engineer specializing in air quality modeling, atmospheric pollution control, and emission reduction systems. He holds a PhD in Environmental Engineering and has spent over a decade working with urban planning teams and sustainability consultancies to reduce airborne contaminants in densely populated cities. At Eco – Friendly Engineer, Ethan focuses on translating complex air quality data—such as particulate matter (PM2.5), nitrogen oxides, and carbon monoxide—into practical insights that policymakers, engineers, and eco-conscious readers can actually use. His writing balances scientific rigor with clarity, making even regulatory air standards approachable. Outside the lab and fieldwork, Ethan enjoys long-distance cycling, building DIY air sensors, and experimenting with indoor plant setups to test natural air purification methods. He’s a strong believer that cleaner air begins with informed engineering decisions and everyday awareness.

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