Upwind Report

Glyphosate use in Putnam County, Ohio

Estimated farm glyphosate use in Putnam County, Ohio was 447 to 453 pounds per square mile of county land in 2019, higher than 93% of US counties.

Map of Putnam 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 land447 to 453lbTop 7% in the US
US
208th of 3,060
Ohio
4th of 88
Per square mile of cropland451 to 457lb

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

Since 2000

Up from 215 in 2000 to 453 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
2000204215
2001221221
2002289289
2003306306
2004283289
2005312312
2006300306
2007379385
2008447447
2009453464
2010453459
2011543543
2012577577
2013600606
2014509515
2015464464
2016464470
2017470475
2018464475
2019447453
See Putnam 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 Putnam 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.