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275 points rntn | 1 comments | | HN request time: 0.392s | source
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firesteelrain ◴[] No.45158651[source]
Dementia rates in Miami Dade are among the highest in the country while Utah is on the low end. What is striking is that Utah has worse air quality, which is a known risk factor, yet still shows lower prevalence.

Why is that?

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Mistletoe ◴[] No.45158726[source]
There are obviously lots more factors affecting dementia than air quality.

Also Utah has worse air quality than Miami? Where in Utah? My trips to Utah I remember pristine air but of course I didn’t have an air monitor on board other than my nose.

Edit: Oh I see

>Utah, particularly in urban areas like the Wasatch Front, frequently experiences worse air quality than Miami. Utah's air quality issues are often caused by unique geographical and meteorological conditions. In winter, temperature inversions trap cold, polluted air in the valleys, leading to high levels of particulate matter (PM2.5) pollution. In the summer, heat and sunlight can create high levels of ground-level ozone. The American Lung Association has ranked cities in the Salt Lake City-Provo-Orem area among the worst for ozone and short-term particle pollution.

>In contrast, Miami's air quality is generally "Good" throughout the year, with occasional exceptions. The primary pollutants are also PM2.5 and ozone, but the geographical and weather conditions do not contribute to the same level of pollutant trapping as in Utah. The city has programs in place for air quality monitoring and standards.

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1. gausswho ◴[] No.45159512[source]
Salt Lake is a ticking time bomb as it evaporates and exposes heavy metals downwind to major population centers.