Upwind Report

Glyphosate use in Aurora County, South Dakota

Estimated farm glyphosate use in Aurora County, South Dakota was 234 pounds per square mile of county land in 2019, higher than 77% of US counties.

Map of Aurora County, South Dakota 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 land234lbTop 23% in the US
US
684th of 3,060
South Dakota
29th of 66
Per square mile of cropland240lb

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

Since 2000

Up from 139 in 2000 to 234 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
2000139139
2001245245
2002217217
2003195195
2004189189
2005211211
2006211211
2007212212
2008189195
2009223223
2010262262
2011295295
2012429429
2013501507
2014301306
2015523523
2016367367
2017384384
2018267278
2019234234
See Aurora 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 Aurora County, South Dakota 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.