Upwind Report

Glyphosate use in Halifax County, North Carolina

Estimated farm glyphosate use in Halifax County, North Carolina was 322 to 325 pounds per square mile of county land in 2019, higher than 85% of US counties.

Map of Halifax 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 land322 to 325lbTop 15% in the US
US
456th of 3,060
North Carolina
11th of 100
Per square mile of cropland679 to 685lb

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

Since 2000

Up from 80 in 2000 to 325 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
20007780
2001143146
2002146146
2003127127
2004140143
2005170173
2006178178
2007158158
2008147147
2009167167
2010240240
2011269269
2012254256
2013230230
2014244244
2015265268
2016262262
2017252252
2018257257
2019322325
See Halifax 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 Halifax 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.