Upwind Report

Glyphosate use in Union County, Ohio

Estimated farm glyphosate use in Union County, Ohio was 221 pounds per square mile of county land in 2019, higher than 76% of US counties.

Map of Union County, Ohio 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 land221lbTop 24% in the US
US
722nd of 3,060
Ohio
29th of 88
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 Union County against the US county median, with the source, to post or send.

Since 2000

Up from 167 in 2000 to 221 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
2000161167
2001217217
2002350350
2003267267
2004244244
2005283283
2006283289
2007294294
2008338338
2009316316
2010338338
2011382388
2012521521
2013382382
2014404404
2015348348
2016486486
2017370375
2018453458
2019221221
See Union 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 Union County, Ohio 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.