Upwind Report

Glyphosate use in Delaware County, Ohio

Estimated farm glyphosate use in Delaware County, Ohio was 143 pounds per square mile of county land in 2019, higher than 66% of US counties.

Map of Delaware 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 land143lbTop 34% in the US
US
1,018th of 3,060
Ohio
44th of 88
Per square mile of cropland171lb

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

Since 2000

Up from 118 in 2000 to 143 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
2000113118
2001152152
2002181181
2003176176
2004166166
2005190190
2006190190
2007165165
2008238238
2009224224
2010238238
2011281281
2012290290
2013269269
2014264269
2015221221
2016321321
2017215215
2018282282
2019143143
See Delaware 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 Delaware 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.