Upwind Report

Glyphosate use in Madison County, Alabama

Estimated farm glyphosate use in Madison County, Alabama was 294 pounds per square mile of county land in 2019, higher than 82% of US counties.

Map of Madison County, Alabama 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 land294lbTop 18% in the US
US
537th of 3,060
Alabama
2nd of 67
Per square mile of cropland463lb

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

Since 2000

Up from 132 in 2000 to 294 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
2000121132
2001143143
2002200200
2003139139
2004109116
2005142142
2006179179
2007112112
2008152152
2009134134
2010197197
2011225229
2012248248
2013298298
2014309309
2015206206
2016179179
2017142142
2018222222
2019294294
See Madison 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 Madison County, Alabama 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.