Upwind Report

Glyphosate use in Lancaster County, Virginia

Estimated farm glyphosate use in Lancaster County, Virginia was 82 pounds per square mile of county land in 2019, higher than 57% of US counties.

Map of Lancaster County, Virginia 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 land82lbTop 43% in the US
US
1,311th of 3,060
Virginia
28th of 97
Per square mile of cropland206lb

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

Since 2000

Up from 23 in 2000 to 82 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
20001823
20016266
20026868
20037171
20047373
20058989
2006105105
20076969
20087591
20095353
20107474
20116769
20125151
20134646
2014130130
2015139139
20169191
20176868
2018116116
20198282
See Lancaster 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 Lancaster County, Virginia 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.