Upwind Report

Glyphosate use in Union County, Pennsylvania

Estimated farm glyphosate use in Union County, Pennsylvania was 102 to 107 pounds per square mile of county land in 2019, higher than 61% of US counties.

Map of Union 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 land102 to 107lbTop 39% in the US
US
1,186th of 3,060
Pennsylvania
19th of 67
Per square mile of cropland228 to 240lb

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

Since 2000

Up from 54 in 2000 to 107 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
20005454
20015959
20024346
20034951
20045656
20056969
20067777
2007100100
20089092
2009108110
20108282
2011115115
2012154154
2013110110
2014166166
2015141143
2016107113
2017131131
20188484
2019102107
See Union 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 Union 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.