Upwind Report

Glyphosate use in Hertford County, North Carolina

Estimated farm glyphosate use in Hertford County, North Carolina was 274 to 276 pounds per square mile of county land in 2019, higher than 81% of US counties.

Map of Hertford County, North Carolina 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 land274 to 276lbTop 19% in the US
US
574th of 3,060
North Carolina
18th of 100
Per square mile of cropland634 to 640lb

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

Since 2000

Up from 60 in 2000 to 276 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
20005760
20019797
2002112112
20038992
20048282
2005124126
2006126126
2007121121
2008113113
2009131131
2010187187
2011218218
2012216216
2013185185
2014202202
2015224224
2016212212
2017193195
2018221221
2019274276
See Hertford 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 Hertford County, North Carolina 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.