Nitrapyrin in streams: The first study documenting off-field transport of a nitrogen stabilizer compound
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Abstract
Nitrapyrin is a bactericide that is co-applied with fertilizer to prevent nitrification and enhance corn yields. While there have been studies of the environmental fate of nitrapyrin, there is no documentation of its off-field transport to streams. In 2016, 59 water samples from 11 streams across Iowa were analyzed for nitrapyrin and its degradate, 6-chloropicolinic acid (6-CPA), along with three widely used herbicides, acetochlor, atrazine, and metolachlor. Nitrapyrin was detected in seven streams (39% of water samples) with concentrations ranging from 12 to 240 ng/L; 6-CPA was never detected. The herbicides were ubiquitously detected (100% of samples, 28–16000 ng/L). Higher nitrapyrin concentrations in streams were associated with rainfall events following spring fertilizer applications. Nitrapyrin persisted in streams for up to 5 weeks. These results highlight the need for more research focused on the environmental fate and transport of nitrapyrin and the potential toxicity this compound could have on nontarget organisms.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Nitrapyrin in streams: The first study documenting off-field transport of a nitrogen stabilizer compound |
| Series title | Environmental Science & Technology Letters |
| DOI | 10.1021/acs.estlett.6b00348 |
| Volume | 3 |
| Issue | 11 |
| Publication Date | October 14, 2016 |
| Year Published | 2016 |
| Language | English |
| Publisher | American Chemical Society |
| Contributing office(s) | California Water Science Center, Toxic Substances Hydrology Program |
| Description | 6 p. |
| First page | 387 |
| Last page | 392 |
| Google Analytic Metrics | Metrics page |