Upwind Report

Glyphosate use in DeKalb County, Alabama

Estimated farm glyphosate use in DeKalb County, Alabama was 74 pounds per square mile of county land in 2019, higher than 55% of US counties.

Map of DeKalb 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 land74lbTop 45% in the US
US
1,356th of 3,060
Alabama
15th of 67
Per square mile of cropland120lb

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.

Share image

A picture of DeKalb County against the US county median, with the source, to post or send.

Since 2000

Up from 15 in 2000 to 74 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
20001515
20011818
20022222
20031818
20041414
20052525
20062525
20074343
20084747
20094343
20105050
20113939
20125050
20133939
20143535
2015103103
20167181
20175656
20184653
20197474
See DeKalb 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 DeKalb 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.