Upwind Report

Glyphosate use in Lawrence County, Pennsylvania

Estimated farm glyphosate use in Lawrence County, Pennsylvania was 164 to 171 pounds per square mile of county land in 2019, higher than 70% of US counties.

Map of Lawrence County, Pennsylvania 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 land164 to 171lbTop 30% in the US
US
899th of 3,060
Pennsylvania
9th of 67
Per square mile of cropland268 to 280lb

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

Since 2000

Up from 32 in 2000 to 171 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
20003232
20012828
20023939
20035053
20047.111
20054646
20066363
20073235
20083539
20096464
20109292
20119898
20125656
20137477
20149898
20156363
20168787
20173232
20188487
2019164171
See Lawrence 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 Lawrence County, Pennsylvania 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.