Upwind Report

Glyphosate use in Jefferson County, Pennsylvania

Estimated farm glyphosate use in Jefferson County, Pennsylvania was 47 to 53 pounds per square mile of county land in 2019, higher than 51% of US counties.

Map of Jefferson 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 land47 to 53lbTop 49% in the US
US
1,479th of 3,060
Pennsylvania
33rd of 67
Per square mile of cropland131 to 148lb

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

Since 2000

Up from 4.2 in 2000 to 53 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
20004.24.2
20014.24.2
20024.26.3
20036.36.3
20042.12.1
20058.38.3
20061212
20074.14.1
20084.16.2
20091010
20101616
20112222
20122323
20131616
2014108.1
20151616
20162222
20178.18.1
20182222
20194753
See Jefferson 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 Jefferson 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.