Ractopamine in particulate matter emitted from beef cattle feedyards and playa wetlands in the Central Plains.
Environ Toxicol Chem
; 37(4): 970-974, 2018 04.
Article
em En
| MEDLINE
| ID: mdl-29131396
ABSTRACT
Beef cattle in the United States are routinely administered ractopamine, a ß-adrenergic receptor agonist, to enhance growth. The present study is the first to quantify ractopamine in feedyard-emitted particulate matter and playa wetlands near feedyards. Ractopamine was present in 92% of particulate matter samples, 16% of playa sediment samples, and 3% of playa water samples, at maximum concentrations of 4.7 µg/g, 5.2 ng/g (dry wt), and 271 ng/L, respectively. These data suggest that aerial transmission and deposition of particulate matter is a transport mechanism for ractopamine between feedyards and aquatic systems in the region. Environ Toxicol Chem 2018;37970-974. © 2017 SETAC.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fenetilaminas
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Áreas Alagadas
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Material Particulado
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Carne Vermelha
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article