Upwind Report

Glyphosate use in Talbot County, Maryland

Estimated farm glyphosate use in Talbot County, Maryland was 598 pounds per square mile of county land in 2019, higher than 98% of US counties.

Map of Talbot County, Maryland 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 land598lbTop 2% in the US
US
44th of 3,060
Maryland
3rd of 23
Per square mile of cropland737lb

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

Since 2000

Up from 94 in 2000 to 598 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
20008994
2001159173
2002187192
2003192192
2004187187
2005289294
2006279279
2007191195
2008167167
2009354350
2010457457
2011618613
2012409409
2013515515
2014162167
2015223232
2016556561
2017468468
2018529524
2019598598
See Talbot 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 Talbot County, Maryland 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.