Upwind Report

Glyphosate use in Graham County, Kansas

Estimated farm glyphosate use in Graham County, Kansas was 156 pounds per square mile of county land in 2019, higher than 68% of US counties.

Map of Graham 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 land156lbTop 32% in the US
US
964th of 3,060
Kansas
81st of 105
Per square mile of cropland274lb

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

Since 2000

Up from 51 in 2000 to 156 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
20004851
20014141
20024448
20038383
20047070
2005111111
20068686
2007102102
2008124124
2009183183
2010187187
2011113113
2012178178
2013139142
2014234234
2015266266
2016185185
2017208208
2018293293
2019156156
See Graham 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 Graham 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.