Upwind Report

Glyphosate use in Webster County, Kentucky

Estimated farm glyphosate use in Webster County, Kentucky was 479 pounds per square mile of county land in 2019, higher than 94% of US counties.

Map of Webster County, Kentucky 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 land479lbTop 6% in the US
US
170th of 3,060
Kentucky
14th of 120
Per square mile of cropland634lb

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

Since 2000

Up from 87 in 2000 to 479 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
20008787
2001148148
2002143143
2003126126
2004134134
2005221221
2006208212
2007203203
2008229229
2009277277
2010303303
2011280280
2012298298
2013336336
2014397397
2015345345
2016384384
2017388388
2018431436
2019479479
See Webster 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 Webster County, Kentucky 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.