Upwind Report

Glyphosate use in Loudon County, Tennessee

Estimated farm glyphosate use in Loudon County, Tennessee was 149 pounds per square mile of county land in 2019, higher than 67% of US counties.

Map of Loudon 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 land149lbTop 33% in the US
US
991st of 3,060
Tennessee
18th of 95
Per square mile of cropland211lb

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 Loudon County against the US county median, with the source, to post or send.

Since 2000

Up from 12 in 2000 to 149 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
20001212
20011620
20024.14.1
20032020
20048.212
20051212
20062025
20072020
20082025
20092529
20103741
2011162162
2012171175
20135353
20146989
20152832
20163640
20176565
2018109113
2019149149
See Loudon 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 Loudon 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.