Upwind Report

Glyphosate use in Jones County, Iowa

Estimated farm glyphosate use in Jones County, Iowa was 359 to 364 pounds per square mile of county land in 2019, higher than 87% of US counties.

Map of Jones County, Iowa 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 land359 to 364lbTop 13% in the US
US
379th of 3,060
Iowa
62nd of 99
Per square mile of cropland394 to 400lb

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

Since 2000

Up from 93 in 2000 to 364 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
20009393
2001140145
2002140140
2003156156
2004146146
2005120125
2006172172
2007229234
2008338338
2009307307
2010364364
2011338338
2012369369
2013411411
2014369369
2015395395
2016374374
2017426432
2018359359
2019359364
See Jones 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 Jones County, Iowa 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.