Upwind Report

Glyphosate use in Carroll County, Kentucky

Estimated farm glyphosate use in Carroll County, Kentucky was 41 to 44 pounds per square mile of county land in 2019, lower than 50% of US counties.

Map of Carroll County, Kentucky 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 land41 to 44lb
US
1,550th of 3,060
Kentucky
64th of 120
Per square mile of cropland86 to 91lb

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

Since 2000

Up from 5.8 in 2000 to 44 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
20002.95.8
20014952
20023535
20031717
20041414
2005111114
2006111111
20072626
2008156156
20091717
20108383
20112.82.8
20121111
2013139139
20142222
2015109109
20164747
20171919
20185055
20194144
See Carroll 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 Carroll County, Kentucky 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.