Upwind Report

Glyphosate use in Marion County, Indiana

Estimated farm glyphosate use in Marion County, Indiana was 37 pounds per square mile of county land in 2019, lower than 53% of US counties.

Map of Marion County, Indiana 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 land37lb
US
1,626th of 3,060
Indiana
87th of 92
Per square mile of cropland69lb

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

Since 2000

Up from 17 in 2000 to 37 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
20001717
20012020
20022323
20032020
20042020
20052020
20062323
20071919
20083535
20093636
20103535
20114141
20123535
20134444
20144141
20153737
20164040
20173131
20182828
20193737
See Marion 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 Marion County, Indiana 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.