Upwind Report

Glyphosate use in Watonwan County, Minnesota

Estimated farm glyphosate use in Watonwan County, Minnesota was 410 pounds per square mile of county land in 2019, higher than 90% of US counties.

Map of Watonwan County, Minnesota 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 land410lbTop 10% in the US
US
288th of 3,060
Minnesota
9th of 87
Per square mile of cropland417lb

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

Since 2000

Up from 135 in 2000 to 410 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
2000135135
2001186186
2002270270
2003304304
2004309309
2005354354
2006354354
2007427427
2008489489
2009529529
2010546546
2011579579
2012574574
2013579585
2014433433
2015506506
2016489489
2017360360
2018382382
2019410410
See Watonwan 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 Watonwan County, Minnesota 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.