Upwind Report

Glyphosate use in Montgomery County, Pennsylvania

Estimated farm glyphosate use in Montgomery County, Pennsylvania was 19 pounds per square mile of county land in 2019, lower than 60% of US counties.

Map of Montgomery 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 land19lb
US
1,861st of 3,060
Pennsylvania
46th of 67
Per square mile of cropland29lb

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

Since 2000

Up from 12 in 2000 to 19 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
20001212
20011212
20027.87.8
20037.812
20041212
20051616
20061919
20077.87.8
20087.77.7
20091616
20101919
20111515
20121616
20131919
20141212
20151515
20161215
20171515
20181919
20191919
See Montgomery 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 Montgomery 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.