Upwind Report

Glyphosate use in Obion County, Tennessee

Estimated farm glyphosate use in Obion County, Tennessee was 289 pounds per square mile of county land in 2019, higher than 82% of US counties.

Map of Obion 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 land289lbTop 18% in the US
US
547th of 3,060
Tennessee
8th of 95
Per square mile of cropland354lb

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

Since 2000

Up from 258 in 2000 to 289 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
2000258258
2001220220
2002262267
2003361361
2004341341
2005280280
2006505519
2007430430
2008528528
2009445449
2010342346
2011616616
2012337337
20139393
2014252252
2015424424
2016615615
2017266270
2018405405
2019289289
See Obion 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 Obion 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.