Upwind Report

Glyphosate use in Trego County, Kansas

Estimated farm glyphosate use in Trego County, Kansas was 150 pounds per square mile of county land in 2019, higher than 67% of US counties.

Map of Trego County, Kansas 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 land150lbTop 33% in the US
US
986th of 3,060
Kansas
82nd of 105
Per square mile of cropland257lb

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

Since 2000

Up from 17 in 2000 to 150 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
20001717
20014343
20025959
20035959
20045656
20057979
20066972
2007135135
2008115115
2009179179
2010206206
2011143143
2012190190
2013203203
2014243243
2015267267
2016234234
2017174174
2018127127
2019150150
See Trego 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 Trego County, Kansas 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.