In parts of California and Oregon, the air quality index has shot up to over 600, exceeding the scale’s maximum value of 500 and reaching unprecedented levels in the United States from ongoing wildfires. (Delhi, India, one of the world’s most…
In parts of California and Oregon, the air quality index has shot up to over 600, exceeding the scale’s maximum value of 500 and reaching unprecedented levels in the United States from ongoing wildfires. (Delhi, India, one of the world’s most…
