27.8 MB (406.7 KB compressed)
2973 x 3272 pixels
25.1 x 27.7 cm ⏐ 9.9 x 10.9 in (300dpi)
SPENCER SUTTON / SCIENCE PHOTO LIBRARY SPENCER SUTTON / SCIENCE PHOTO LIBRARY
Illustration showing air pollution affecting a person's lungs. Air pollution increases the risk of a wide range of ailments, including respiratory problems and heart disease. In 2013 the World Health Organization declared air pollution a human carcinogen, calling it a leading cause of cancer deaths globally.
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