Upwind Report

Glyphosate use in Cannon County, Tennessee

Estimated farm glyphosate use in Cannon County, Tennessee was 142 pounds per square mile of county land in 2019, higher than 66% of US counties.

Map of Cannon 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 land142lbTop 34% in the US
US
1,023rd of 3,060
Tennessee
19th of 95
Per square mile of cropland291lb

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

Since 2000

Up from 32 in 2000 to 142 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
20003232
20012323
20024646
20033838
20044040
20054040
20063740
20078383
20088686
20096363
20105151
20118282
2012237237
20139898
2014174174
2015131134
2016125131
2017120120
2018109109
2019142142
See Cannon 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 Cannon 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.