File:Particulate matter air pollution has numerous sources both natural and human-produced.webp
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Size of this PNG preview of this WEBP file: 800 × 566 pixels. Other resolutions: 320 × 226 pixels | 640 × 453 pixels | 936 × 662 pixels.
Original file (936 × 662 pixels, file size: 69 KB, MIME type: image/webp)