Upwind Report

Glyphosate use in Perry County, Ohio

Estimated farm glyphosate use in Perry County, Ohio was 46 to 51 pounds per square mile of county land in 2019, higher than 51% of US counties.

Map of Perry 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 land46 to 51lbTop 49% in the US
US
1,496th of 3,060
Ohio
60th of 88
Per square mile of cropland97 to 108lb

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

Since 2000

Down from 77 in 2000 to 51 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
20007777
20018080
20025050
20035050
20042225
20057174
20065858
2007126126
2008125128
20099191
2010172172
2011100100
20129295
20136464
2014121124
2015107107
20163840
20178686
20186264
20194651
See Perry 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 Perry 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.