On a crisp winter morning, when the sun struggles to cut through a grey, smoky haze, many of us glance at the air-quality index like a daily horoscope, the number that decides whether we mask up, skip ...

Managing Editor Josh Goldman is a laptop expert and has been writing about and reviewing them since built-in Wi-Fi was an optional feature. He also covers almost anything connected to a PC, including ...

India's Air Quality Index (AQI) translates pollution levels into health risks, classifying air quality into six categories. PM2.5, a key pollutant, deeply impacts lungs and bloodstream, with levels of ...