Upwind Report

Glyphosate use in Carroll County, Tennessee

Estimated farm glyphosate use in Carroll County, Tennessee was 245 pounds per square mile of county land in 2019, higher than 78% of US counties.

Map of Carroll 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 land245lbTop 22% in the US
US
653rd of 3,060
Tennessee
12th of 95
Per square mile of cropland474lb

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

Since 2000

Up from 69 in 2000 to 245 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
20006969
20018487
2002105111
2003102102
2004119122
2005140140
2006173188
2007116116
200895101
2009195198
2010254254
2011205205
2012339339
2013257257
2014358358
2015328328
2016272272
2017254254
2018275275
2019245245
See Carroll 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 Carroll 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.