Upwind Report

Glyphosate use in Lehigh County, Pennsylvania

Estimated farm glyphosate use in Lehigh County, Pennsylvania was 191 to 195 pounds per square mile of county land in 2019, higher than 73% of US counties.

Map of Lehigh 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 land191 to 195lbTop 27% in the US
US
805th of 3,060
Pennsylvania
5th of 67
Per square mile of cropland280 to 285lb

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.

Share image

A picture of Lehigh County against the US county median, with the source, to post or send.

Since 2000

Up from 36 in 2000 to 195 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
20003236
20015656
20025256
20034848
20048488
20055256
2006167167
2007175175
2008190190
20096464
20102424
20118387
2012147151
20134343
2014165165
2015145149
20164347
20179898
20184751
2019191195
See Lehigh 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 Lehigh 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.