Upwind Report

Glyphosate use in Decatur County, Tennessee

Estimated farm glyphosate use in Decatur County, Tennessee was 63 pounds per square mile of county land in 2019, higher than 53% of US counties.

Map of Decatur County, Tennessee and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in the 2019 high estimate. Darker colors mean more use.

2019 numbers

Per square mile of county land63lbTop 47% in the US
US
1,418th of 3,060
Tennessee
37th of 95
Per square mile of cropland177lb

Ranks are by use per square mile of county land, on the 2019 high estimate, among US counties with a value. Counties with the same value share a rank.

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A picture of Decatur County against the US county median, with the source, to post or send.

Since 2000

Up from 11 in 2000 to 63 in 2019. Pounds per square mile of county land, high estimate.

Every year's numbers
Glyphosate per square mile of county land by year, in pounds
YearLowHigh
20001111
20011113
20021921
20031313
20041317
20052525
20062756
20071717
20081419
20094042
20103535
20113535
20124747
20135353
20147272
20156772
20165555
20173739
20186971
20196363
See Decatur County on the map

About these numbers

The main number is the county's estimated farm glyphosate use for the year divided by all of its land, water left out. A county with a little farmland can use a lot per square mile of cropland and still have far less in total than a county with more farmland, so the whole-county number is the one the map colors, ranks and compares.

These are county estimates, not records. They don't show which fields were sprayed or how much any one field got.

USGS makes a low and a high estimate, which fill in use that farms didn't report in different ways.

Per square mile of cropland is the same total spread evenly over the county's cropland only, so it's higher than the whole-county number wherever only part of Decatur County, Tennessee is farmland.

Numbers are in pounds per square mile. The source gives kilograms per square kilometer, and 1 kg per km² is about 5.7 pounds per square mile.

Source: Hengl & Brungard from USGS county estimates, 2000–2019 (CC BY 4.0). Land area: US Census Bureau, 2020.

This page shows estimated farm use only. It says nothing about health and is not medical advice.