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International research shows that industrial particles cross continents, reach the South Pacific, and put scientists studying ocean balance on alert.
One of the most isolated regions on the planet already shows clear signs of human activity, according to an international study published in the scientific journal Communications Earth & Environment. The South Pacific, considered one of the most remote oceanic stretches on Earth, is contaminated by zinc associated with the burning of fossil fuels and industrial emissions. The discovery surprised researchers because the analyzed area is thousands of kilometers away from large urban or industrial centers. Still, pollutant particles manage to cross entire continents through the atmosphere before depositing in the ocean waters.
Industrial pollution reaches a region considered untouched
The work was conducted by scientists from ETH Zurich, Switzerland, and the Helmholtz Centre for Ocean Research GEOMAR, Germany. According to the researchers, metals released by human activity adhere to microscopic aerosols present in the atmosphere. Carried by winds, these particles travel enormous distances until they reach oceanic regions considered practically untouched. This process shows that atmospheric contamination is not restricted to the places where it is generated, as it travels long distances before reaching distant ecosystems.
Industrial zinc reveals the extent of human action
To reach this conclusion, scientists analyzed the isotopic composition of zinc present in particles suspended in seawater and atmospheric air. They also compared the results with lead samples, frequently used as an indicator of environmental pollution. Although zinc exists naturally in the oceans and is essential for microscopic organisms, researchers identified that practically all the metal found on the surface of that region had an industrial origin. Researcher Tal Ben Altabet, the study’s lead author, stated that “there is no longer untouched nature, not even in the South Pacific.”
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Phytoplankton becomes the focus of scientific concern
The problem is concerning because phytoplankton plays a central role in the planet’s climate balance. These organisms absorb carbon dioxide from the atmosphere and aid in oxygen production through photosynthesis. Excessive chemical changes in the marine environment can compromise this natural cycle and affect processes important for life in the oceans. The presence of industrial metals in such a remote region raises further alarm about the indirect impacts of industrialization on sensitive marine ecosystems.
Study reinforces alert on global pollution
In addition to revealing the global reach of atmospheric pollution, the study also reinforces a growing concern among scientists. Regions considered distant from human activity are already suffering direct impacts from large-scale emissions. This scenario shows that pollution does not respect geographical boundaries and can reach areas previously seen as protected by natural isolation. The South Pacific, in this context, now serves as a worrying indicator of the advance of industrial contamination across the planet.
Next analyses should target other oceans
Now, researchers intend to expand analyses to other oceans, seeking to understand how contamination by industrial metals may affect marine life and ecosystems in the coming decades. The investigation should help to more precisely measure the impact of particles transported through the atmosphere and deposited in ocean waters.
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