Air pollution lowers Vitamin D — PM 2.5 global map, India is the worst. HEPA

How PM 2.5 from air pollution and wildfires decreases Vitamin D

1) Reduces the amount UVB available at ground level in noonday sun

2) Reduces the amount of time a person wants to be outdoors

3) PM 2.5 ==> Inflammation ==> Vitamin D is consumed


Global map of average PM 2.5

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Top 20 Polluted cities: India, etc.

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Indoor air pollution can spike to 100X that of outdoor pollution: Cooking, Smoking, Incense, Candles, etc,


HEPA filters: Founder of VitaminDWiki has 5 HEPA filters in his house

and a battery-powered one for biking during wildfire smoke or pollen

Home includes Amazon $45, Outdoor Amazon $40

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RSV and COVID are airborne: HEPA filters can stop them


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Impairs Health


Restoring Vitamin D is essential if smoke or poor air quality