Upwind Report

Glyphosate use in Washington County, Mississippi

Estimated farm glyphosate use in Washington County, Mississippi was 463 pounds per square mile of county land in 2019, higher than 93% of US counties.

Map of Washington County, Mississippi 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 land463lbTop 7% in the US
US
191st of 3,060
Mississippi
7th of 82
Per square mile of cropland537lb

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

Since 2000

Up from 314 in 2000 to 463 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
2000304314
2001270275
2002299304
2003437447
2004593593
2005638638
2006736741
2007604604
2008584584
2009433433
2010556556
2011748758
2012652652
2013833833
2014863863
2015538538
2016478478
2017508508
2018592592
2019463463
See Washington 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 Washington County, Mississippi 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.