Upwind Report

Glyphosate use in Bradford County, Pennsylvania

Estimated farm glyphosate use in Bradford County, Pennsylvania was 32 to 35 pounds per square mile of county land in 2019, lower than 53% of US counties.

Map of Bradford 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 land32 to 35lb
US
1,650th of 3,060
Pennsylvania
38th of 67
Per square mile of cropland63 to 69lb

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

Since 2000

Up from 18 in 2000 to 35 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
20001818
200100
20028.98.9
20035.98.9
20043.05.9
20055.98.9
20061215
20072424
20081215
20092427
20102727
20111818
20124144
20133535
20142929
20154444
20161826
20172326
20181218
20193235
See Bradford 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 Bradford 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.