Upwind Report

Glyphosate use in Van Buren County, Iowa

Estimated farm glyphosate use in Van Buren County, Iowa was 186 pounds per square mile of county land in 2019, higher than 72% of US counties.

Map of Van Buren County, Iowa 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 land186lbTop 28% in the US
US
837th of 3,060
Iowa
90th of 99
Per square mile of cropland228lb

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

Since 2000

Up from 84 in 2000 to 186 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
20008484
20017989
20029898
2003103107
2004102102
2005121121
20069393
2007121121
2008154154
2009168173
2010149149
2011195195
2012257257
2013214214
2014246246
2015209214
2016237237
2017223223
2018181186
2019186186
See Van Buren 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 Van Buren County, Iowa 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.