Upwind Report

Glyphosate use in Marion County, Ohio

Estimated farm glyphosate use in Marion County, Ohio was 260 to 265 pounds per square mile of county land in 2019, higher than 80% of US counties.

Map of Marion 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 land260 to 265lbTop 20% in the US
US
609th of 3,060
Ohio
26th of 88
Per square mile of cropland274 to 280lb

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

Since 2000

Up from 190 in 2000 to 265 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
2000185190
2001250255
2002299299
2003299299
2004277282
2005310310
2006304309
2007293293
2008385391
2009364364
2010364369
2011417417
2012450450
2013406406
2014444450
2015379379
2016525525
2017401406
2018466471
2019260265
See Marion 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 Marion 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.