Upwind Report

Glyphosate use in Lafayette County, Mississippi

Estimated farm glyphosate use in Lafayette County, Mississippi was 76 to 79 pounds per square mile of county land in 2019, higher than 56% of US counties.

Map of Lafayette 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 land76 to 79lbTop 44% in the US
US
1,325th of 3,060
Mississippi
31st of 82
Per square mile of cropland280 to 291lb

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

Since 2000

Up from 20 in 2000 to 79 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
20002020
20012929
20021416
20031919
20043131
20052022
20064549
20071717
20081818
20091515
20102728
20114647
20122828
20139.59.5
20141414
20151919
20162728
20173636
20183131
20197679
See Lafayette 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 Lafayette 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.