Upwind Report

Glyphosate use in Mason County, Kentucky

Estimated farm glyphosate use in Mason County, Kentucky was 92 to 96 pounds per square mile of county land in 2019, higher than 59% of US counties.

Map of Mason 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 land92 to 96lbTop 41% in the US
US
1,251st of 3,060
Kentucky
45th of 120
Per square mile of cropland120 to 126lb

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

Since 2000

Up from 35 in 2000 to 96 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
20003135
20011818
20021822
20031318
20042631
20052640
20062631
20074448
20084444
20093131
20103544
2011127131
2012114114
2013113113
2014148148
2015113113
20169191
2017113113
2018139157
20199296
See Mason 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 Mason 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.