Upwind Report

Glyphosate use in Grant County, Kansas

Estimated farm glyphosate use in Grant County, Kansas was 480 pounds per square mile of county land in 2019, higher than 94% of US counties.

Map of Grant 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 land480lbTop 6% in the US
US
166th of 3,060
Kansas
7th of 105
Per square mile of cropland588lb

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

Since 2000

Up from 18 in 2000 to 480 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
20001818
20012323
20023232
20036060
20047878
2005194194
2006148148
2007166166
2008213213
2009204204
2010204204
2011176176
2012330330
2013269269
2014185185
2015246246
2016279279
2017461461
2018517517
2019480480
See Grant 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 Grant 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.