Upwind Report

Glyphosate use in Stewart County, Tennessee

Estimated farm glyphosate use in Stewart County, Tennessee was 40 pounds per square mile of county land in 2019, lower than 52% of US counties.

Map of Stewart 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 land40lb
US
1,592nd of 3,060
Tennessee
47th of 95
Per square mile of cropland217lb

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.

Share image

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

Since 2000

Up from 4.2 in 2000 to 40 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
20004.24.2
20016.36.3
20022.12.1
20038.48.4
20048.38.3
20051212
20061415
20078.48.4
20082121
20091717
20101112
20112121
20127.47.4
20132020
20142828
20156161
20162729
20172626
20182323
20194040
See Stewart 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 Stewart 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.