# Sharks Near Brazil Test Positive for Cocaine: Pollution Crisis 🦈

**URL:** <https://onehack.st/t/sharks-near-brazil-test-positive-for-cocaine-pollution-crisis/287808>\
**Category:** News & Articles\
**Tags:** technology\
**Created:** [July 28, 2024, 7:18pm UTC](https://onehack.st/t/sharks-near-brazil-test-positive-for-cocaine-pollution-crisis/287808 "2024-07-28T19:18:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![TheJoker](https://onehack.st/user_avatar/onehack.st/thejoker/32/22660_2.png) [@TheJoker](https://onehack.st/u/TheJoker)\
**Post date:** [July 28, 2024, 7:18pm UTC](https://onehack.st/t/sharks-near-brazil-test-positive-for-cocaine-pollution-crisis/287808/1 "2024-07-28T19:18:22Z")

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**Summary:**

1. **Cocaine Contamination** : Thirteen sharpnose sharks off Rio de Janeiro’s coast tested positive for cocaine, with concentrations 100 times higher than previously recorded in aquatic creatures. The contamination likely stems from drug processing labs and urban wastewater.

2. **Research Insights** : The study, published in _Science of the Total Environment_, highlights sharpnose sharks’ increased exposure to pollutants due to their coastal habitat, contrasting with species like hammerheads and tiger sharks featured in recent “Cocaine Shark” films.

3. **Behavioral Impact Unknown** : It’s unclear if cocaine affects the sharks’ behavior. The research raises concerns about marine pollution’s broader implications and potential risks to marine life and ecosystems.

[Read more on BBC](https://bbc.co.uk)