Upwind Report

Glyphosate use in Marshall County, Alabama

Estimated farm glyphosate use in Marshall County, Alabama was 52 pounds per square mile of county land in 2019, higher than 51% of US counties.

Map of Marshall 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 land52lbTop 49% in the US
US
1,482nd of 3,060
Alabama
20th of 67
Per square mile of cropland86lb

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

Since 2000

Up from 14 in 2000 to 52 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
20001414
20011414
20027.211
20031818
20041111
20051414
20061818
20072828
20082121
20092525
20102525
20112525
20122121
20132828
20142828
20155959
20163849
20172828
20182831
20195252
See Marshall 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 Marshall 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.