Upwind Report

Glyphosate use in Gilchrist County, Florida

Estimated farm glyphosate use in Gilchrist County, Florida was 15 to 23 pounds per square mile of county land in 2019, lower than 57% of US counties.

Map of Gilchrist County, Florida 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 land15 to 23lb
US
1,774th of 3,060
Florida
17th of 66
Per square mile of cropland29 to 46lb

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.

Share image

A picture of Gilchrist County against the US county median, with the source, to post or send.

Since 2000

Up from 2.9 in 2000 to 23 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
20002.92.9
200102.9
20022.92.9
20032020
20041414
20052225
20061111
20071111
20081111
20091111
20102025
20112525
20122932
20132932
20142932
20152629
20168.715
20172323
20181821
20191523
See Gilchrist 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 Gilchrist County, Florida 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.