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| Alcoa's Portland aluminium smelter in Australia coexists with agriculture and nature. Healthy pastures and natural vegetation are visual indicators of high standards of technology and work practices. |
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| Continuous monitoring of air and water quality around Alcoa's Portland smelter measures the effectiveness of the smelter's technology and work practices in protecting the environment and human health. |
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| Cattle grazing within the boundaries of the Portland smelter offer additional assurance that the smelter is being managed in a way that is protective of plants and animals. |
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| Animals and vegetation near the Portland smelter. |
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