Upwind Report

Glyphosate use in Brown County, Kansas

Estimated farm glyphosate use in Brown County, Kansas was 563 pounds per square mile of county land in 2019, higher than 97% of US counties.

Map of Brown 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 land563lbTop 3% in the US
US
72nd of 3,060
Kansas
3rd of 105
Per square mile of cropland577lb

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

Since 2000

Up from 172 in 2000 to 563 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
2000172172
2001223228
2002228228
2003239239
2004278278
2005251251
2006217217
2007401401
2008406406
2009368368
2010524524
2011485485
2012535535
2013502502
2014647652
2015563563
2016613613
2017563563
2018580585
2019563563
See Brown 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 Brown 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.