Upwind Report

Glyphosate use in Seward County, Nebraska

Estimated farm glyphosate use in Seward County, Nebraska was 475 pounds per square mile of county land in 2019, higher than 94% of US counties.

Map of Seward County, Nebraska 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 land475lbTop 6% in the US
US
175th of 3,060
Nebraska
37th of 93
Per square mile of cropland537lb

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

Since 2000

Up from 169 in 2000 to 475 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
2000169169
2001154154
2002184184
2003244249
2004249254
2005294294
2006259264
2007250255
2008420430
2009446446
2010501501
2011486501
2012553553
2013513513
2014549554
2015560560
2016566566
2017546546
2018515515
2019475475
See Seward 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 Seward County, Nebraska 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.