IBOV 172,457.76 ▲ 0.66% IPC MEX 71,204.98 ▼ 0.84% MERVAL 2,848,945 — — USD/BRL5.67▲ 0.45% USD/MXN18.52▼ 0.42% USD/CLP994.16▼ 0.13% USD/COP3,302▲ 0.70% USD/PEN3.40▼ 0.16% USD/ARS1,544▼ 0.11% USD/UYU40.59▲ 2.33% USD/PYG6,196▲ 2.33% USD/BOB11.59▼ 0.37% USD/DOP60.59▲ 1.85% USD/CRC442.74▼ 0.10% USD/GTQ7.64▲ 2.06% USD/HNL26.91▲ 2.15% USD/NIO 36.62 — 0.00% USD/VES909.35▼ 0.13% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD157.69▲ 1.39% USD/TTD6.75▲ 1.58% EUR/BRL6.25▲ 0.93% BRENT 95.84 ▲ 0.02% WTI 88.56 ▼ 0.20% IRON ORE 161.91 — — COPPER 6.09 ▼ 1.50% GOLD 3,886 ▲ 0.03% SILVER 49.12 ▼ 1.70% SOY 1,232 ▲ 0.37% CORN 445.50 ▲ 0.68% WHEAT 593.25 ▲ 1.54% COFFEE 279.25 ▼ 0.34% SUGAR 18.40 ▲ 0.99% ORANGE JUICE 136.85 ▼ 2.91% COTTON 79.02 ▲ 0.44% COCOA 5,123 ▲ 1.13% BEEF 224.80 ▲ 2.70% CATTLE 335.35 ▼ 0.10% LITHIUM 58.76 ▼ 1.13% PETR4 45.30 ▲ 1.34% VALE3 63.50 ▼ 0.70% ITUB4 42.27 ▲ 1.42% BBDC4 14.52 ▲ 1.40% ABEV3 15.79 ▲ 0.25% BBAS3 15.10 ▼ 2.45% B3SA3 14.89 ▲ 0.88% WEGE3 51.31 ▼ 0.66% PRIO3 63.30 — 0.00% SUZB3 54.77 ▼ 2.27% RENT3 30.07 ▲ 1.66% AZZA3 15.91 ▼ 5.86% CSAN3 3.10 ▲ 8.77% RAIZ4 20.00 — 0.00% PCAR3 2.56 ▲ 7.11% GMAT3 4.25 ▲ 10.68% PSSA3 46.41 ▲ 1.02% CVCB3 0.83 ▼ 1.19% POSI3 3.15 ▼ 6.53% SLCE3 18.28 ▼ 0.44% NATU3 5.13 ▼ 3.75% BRKM5 3.02 ▼ 1.63% RANI3 8.18 — 0.00% CSNA3 3.72 ▼ 12.06% IBOV 172,457.76 ▲ 0.66% IPC MEX 71,204.98 ▼ 0.84% MERVAL 2,848,945 — — USD/BRL 5.67 ▲ 0.45% USD/MXN 18.52 ▼ 0.42% USD/CLP 994.16 ▼ 0.13% USD/COP 3,302 ▲ 0.70% USD/PEN 3.40 ▼ 0.16% USD/ARS 1,544 ▼ 0.11% USD/UYU 40.59 ▲ 2.33% USD/PYG 6,196 ▲ 2.33% USD/BOB 11.59 ▼ 0.37% USD/DOP 60.59 ▲ 1.85% USD/CRC 442.74 ▼ 0.10% USD/GTQ 7.64 ▲ 2.06% USD/HNL 26.91 ▲ 2.15% USD/NIO 36.62 — 0.00% USD/VES 909.35 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.69 ▲ 1.39% USD/TTD 6.75 ▲ 1.58% EUR/BRL 6.25 ▲ 0.93% BRENT 95.84 ▲ 0.02% WTI 88.56 ▼ 0.20% IRON ORE 161.91 — — COPPER 6.09 ▼ 1.50% GOLD 3,886 ▲ 0.03% SILVER 49.12 ▼ 1.70% SOY 1,232 ▲ 0.37% CORN 445.50 ▲ 0.68% WHEAT 593.25 ▲ 1.54% COFFEE 279.25 ▼ 0.34% SUGAR 18.40 ▲ 0.99% ORANGE JUICE 136.85 ▼ 2.91% COTTON 79.02 ▲ 0.44% COCOA 5,123 ▲ 1.13% BEEF 224.80 ▲ 2.70% CATTLE 335.35 ▼ 0.10% LITHIUM 58.76 ▼ 1.13% PETR4 45.30 ▲ 1.34% VALE3 63.50 ▼ 0.70% ITUB4 42.27 ▲ 1.42% BBDC4 14.52 ▲ 1.40% ABEV3 15.79 ▲ 0.25% BBAS3 15.10 ▼ 2.45% B3SA3 14.89 ▲ 0.88% WEGE3 51.31 ▼ 0.66% PRIO3 63.30 — 0.00% SUZB3 54.77 ▼ 2.27% RENT3 30.07 ▲ 1.66% AZZA3 15.91 ▼ 5.86% CSAN3 3.10 ▲ 8.77% RAIZ4 20.00 — 0.00% PCAR3 2.56 ▲ 7.11% GMAT3 4.25 ▲ 10.68% PSSA3 46.41 ▲ 1.02% CVCB3 0.83 ▼ 1.19% POSI3 3.15 ▼ 6.53% SLCE3 18.28 ▼ 0.44% NATU3 5.13 ▼ 3.75% BRKM5 3.02 ▼ 1.63% RANI3 8.18 — 0.00% CSNA3 3.72 ▼ 12.06%
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Sunday, November 15, 2026

Mining’s Toxic Legacy in Yanomami Territory

By · · 2 min read

A study by the Oswaldo Cruz Foundation and Socio-Environmental Institute revealed alarming mercury contamination among the Yanomami, Brazil’s largest Indigenous group.

The analysis involved 287 Yanomami individuals, revealing that a vast majority faced mercury levels exceeding safe limits.

Specifically, 84% showed mercury levels above 2.0 μg/g, and 10.8% exceeded 6.0 μg/g, surpassing the World Health Organization’s limit.

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The study linked the highest mercury levels to communities by the Mucajaí River, affected by illegal mining.

Survival International emphasized the worsened situation due to ineffective military action and health post closures.

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Dário Kopenawa from the Hutukara Yanomami Association named mining as the main cause of pollution, habitat loss, and health issues like malaria and malnutrition.

Mining's Toxic Legacy in Yanomami Territory.
Mining’s Toxic Legacy in Yanomami Territory.
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The Yanomami territory, spanning Amazonas and Roraima, houses 31,000 people across 370 communities.

This group, with six linguistic subgroups, only recently encountered non-Indigenous populations.

The study, conducted in October 2022 across nine communities, aimed to document the mercury levels following a request from the Texoli Ninam Indigenous Association.

This investigation sheds light on the severe environmental and health challenges faced by the Yanomami due to illegal mining.

Background

The Brazilian Army’s move in February to deploy 3,000 troops to the Yanomami Indigenous Territory marks a significant effort to safeguard this critical region.

General Tomás Paiva leads deployment addressing urgent crisis from illegal mining, providing essential security and support.

Illegal mining has devastated the environment and endangered the Yanomami people’s health, causing diseases and malnutrition.

The Army’s response includes creating two outposts near key rivers and enhancing logistics and response capabilities.

Though ambitious, this plan faces financial and logistical hurdles.

This action aligns with President Luiz Inácio Lula da Silva’s broader strategy to shift from short-term fixes to lasting solutions for the Yanomami territory.

The government’s commitment involves a significant investment aimed at improving health and security for the indigenous population.

This article was produced by The Rio Times’ automated AI newsroom. Editorial responsibility: Matthias Camenzind, Publisher and Editor-in-Chief. The Rio Times also runs Ask Rio Times, which answers from 100,000+ of our own articles, the daily Latin America Power Map, and prediction-market odds on elections and markets.. How we use AI · Report an error

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