Project
Protecting the health of La Oroya's residents from toxic pollution
For more than 20 years, residents of La Oroya have been seeking justice and reparations after a metallurgical complex caused heavy metal pollution in their community—in violation of their fundamental rights—and the government failed to take adequate measures to protect them.
On March 22, 2024, the Inter-American Court of Human Rights issued its judgment in the case. It found Peru responsible and ordered it to adopt comprehensive reparation measures. This decision is a historic opportunity to restore the rights of the victims, as well as an important precedent for the protection of the right to a healthy environment in Latin America and for adequate state oversight of corporate activities.
Background
La Oroya is a small city in Peru’s central mountain range, in the department of Junín, about 176 km from Lima. It has a population of around 30,000 inhabitants.
There, in 1922, the U.S. company Cerro de Pasco Cooper Corporation installed the La Oroya Metallurgical Complex to process ore concentrates with high levels of lead, copper, zinc, silver and gold, as well as other contaminants such as sulfur, cadmium and arsenic.
The complex was nationalized in 1974 and operated by the State until 1997, when it was acquired by the US Doe Run Company through its subsidiary Doe Run Peru. In 2009, due to the company's financial crisis, the complex's operations were suspended.
Decades of damage to public health
The Peruvian State - due to the lack of adequate control systems, constant supervision, imposition of sanctions and adoption of immediate actions - has allowed the metallurgical complex to generate very high levels of contamination for decades that have seriously affected the health of residents of La Oroya for generations.
Those living in La Oroya have a higher risk or propensity to develop cancer due to historical exposure to heavy metals. While the health effects of toxic contamination are not immediately noticeable, they may be irreversible or become evident over the long term, affecting the population at various levels. Moreover, the impacts have been differentiated —and even more severe— among children, women and the elderly.
Most of the affected people presented lead levels higher than those recommended by the World Health Organization and, in some cases, higher levels of arsenic and cadmium; in addition to stress, anxiety, skin disorders, gastric problems, chronic headaches and respiratory or cardiac problems, among others.
The search for justice
Over time, several actions were brought at the national and international levels to obtain oversight of the metallurgical complex and its impacts, as well as to obtain redress for the violation of the rights of affected people.
AIDA became involved with La Oroya in 1997 and, since then, we’ve employed various strategies to protect public health, the environment and the rights of its inhabitants.
In 2002, our publication La Oroya Cannot Wait helped to make La Oroya's situation visible internationally and demand remedial measures.
That same year, a group of residents of La Oroya filed an enforcement action against the Ministry of Health and the General Directorate of Environmental Health to protect their rights and those of the rest of the population.
In 2006, they obtained a partially favorable decision from the Constitutional Court that ordered protective measures. However, after more than 14 years, no measures were taken to implement the ruling and the highest court did not take action to enforce it.
Given the lack of effective responses at the national level, AIDA —together with an international coalition of organizations— took the case to the Inter-American Commission on Human Rights (IACHR) and in November 2005 requested measures to protect the right to life, personal integrity and health of the people affected. In 2006, we filed a complaint with the IACHR against the Peruvian State for the violation of the human rights of La Oroya residents.
In 2007, in response to the petition, the IACHR granted protection measures to 65 people from La Oroya and in 2016 extended them to another 15.
Current Situation
To date, the protection measures granted by the IACHR are still in effect. Although the State has issued some decisions to somewhat control the company and the levels of contamination in the area, these have not been effective in protecting the rights of the population or in urgently implementing the necessary actions in La Oroya.
Although the levels of lead and other heavy metals in the blood have decreased since the suspension of operations at the complex, this does not imply that the effects of the contamination have disappeared because the metals remain in other parts of the body and their impacts can appear over the years. The State has not carried out a comprehensive diagnosis and follow-up of the people who were highly exposed to heavy metals at La Oroya. There is also a lack of an epidemiological and blood study on children to show the current state of contamination of the population and its comparison with the studies carried out between 1999 and 2005.
The case before the Inter-American Court
As for the international complaint, in October 2021 —15 years after the process began— the IACHR adopted a decision on the merits of the case and submitted it to the Inter-American Court of Human Rights, after establishing the international responsibility of the Peruvian State in the violation of human rights of residents of La Oroya.
The Court heard the case at a public hearing in October 2022. More than a year later, on March 22, 2024, the international court issued its judgment. In its ruling, the first of its kind, it held Peru responsible for violating the rights of the residents of La Oroya and ordered the government to adopt comprehensive reparation measures, including environmental remediation, reduction and mitigation of polluting emissions, air quality monitoring, free and specialized medical care, compensation, and a resettlement plan for the affected people.
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Related projects
U.S. Congress Conditions: Spraying in National Parks
Astrid Puentes, AIDA (510) 550-6753 [email protected] Gastón Chillier, WOLA (202) 797-2171 [email protected] US CONGRESS CONDITIONS ANTI-NARCOTICS SPRAYING IN COLOMBIAN NATIONAL PARKS OAKLAND, CA, DECEMBER 10, 2003 — For the first time, the US Congress has officially acknowledged that US funds for the “Plan Colombia” drug eradication program may be used to spray coca and poppy crops located in Colombian national parks and other natural protected areas. However, the Congress conditioned funding for such spraying on compliance with Colombian law and a determination by the Department of State that “there are no effective alternatives to reduce drug cultivation in these areas.” The decision is part of the 2004 appropriations bill for the Andean Counterdrug Initiative, a key element of the US “War on Drugs” in Bolivia, Colombia, Ecuador, and Peru. The authors of the bill that will be voted in January of 2004, agreed that while there is concern that coca growers are moving into Colombia’s national parks, aerial fumigation in the parks and reserves should be used only as a last resort. Instead, Congress favors alternatives such as manual eradication, training and equipping the police to protect the parks, and relocating families that have moved into these areas. “The policy of using aerial spraying to eradicate illicit crops poses significant threats to human health and the environment,” says Astrid Puentes, Legal Director for AIDA. She adds that “The conditions imposed by the US Congress are a step in the right direction, though to truly protect the environment in Colombia we must ensure that the eradication forces begin complying with Colombian laws and stop trying to weaken them.” Each year, Congress has conditioned the State Department’s use of funds for the spraying program on actions intended to help protect human rights and the environment. As in previous years, the Congress required that in 2004 the State Department certify that: the use of these herbicides in Colombia does not pose unreasonable risks or adverse effects to humans or the environment; the eradication program complies with the Colombian Environmental Management Plan; and the governments investigate and fairly compensate meritorious complaints about health harms and the destruction of legal crops. For the first time, however, the Congress also referred to and conditioned the spraying of national parks and reserves. In 2001, Colombia’s environmental authorities specifically excluded national parks and natural reserves from the regions that are subject to aerial herbicide spraying. Instead, they ordered that manual or mechanical means be used to destroy coca and poppy crops in these areas. The authorities also prohibited the spraying of significant buffer areas surrounding the parks to avoid harms from spray drift or accidental spraying. These special protections are in line with the Colombian Constitution and environmental laws that establish special protections for these environmentally sensitive areas. Therefore, spraying in natural parks and natural reserves in Colombia is clearly illegal. Nevertheless, the Colombian National Anti-narcotics Agency that collaborates closely with the US Department of State has sprayed in Colombia’s national parks. Moreover, in June 2003, the Colombian National Council on Narcotics attempted to legalize such spraying. This action is being contested in Colombian courts for violating the Constitution and other laws. According to Anna Cederstav, a scientist with AIDA, “A policy that creates no viable economic alternatives for farmers simply perpetuates the cycle of farmers cutting forests to plant coca and the government spraying herbicides to destroy the fields. The US and Colombian governments should make a good-faith effort and give manual eradication and alternative development projects a chance to work, instead of relying on massive aerial spraying and military campaigns to destroy the crops.” She adds that “As the US Congress has now recognized for the National Parks, spraying should be the last recourse, but unfortunately it is the only one that has been systematically implemented until now.” The extensive spraying of potent herbicides could have devastating environmental impacts in the National Parks of Colombia, one of the most biodiverse nations on the planet. Important regions of the Amazon basin, the Tropical Andes, and the Chocó coastal rainforest are all located in Colombia. These vital ecosystems are being destroyed not only by illicit drug cultivation, but now also by the eradication program.
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Colombian Court Orders the Suspension of Plan Colombia Spraying
FOR IMMEDIATE RELEASE: June 26, 2003 CITING RISK TO HUMAN HEALTH AND THE ENVIRONMENT, COLOMBIAN COURT ORDERS THE SUSPENSION OF THE US-FINANCED SPRAYING OF COCA AND POPPY CROPS OAKLAND, CA/BOGOTA, COLOMBIA – A recent decision by the Superior Administrative Court of Cundinamarca, Colombia, (released to the public on June 25) declared that the aerial spraying with herbicides to eradicate coca and poppy crops violates the Colombian constitutional rights to a healthy environment, security and public health. As a result, the court ordered that the aerial spraying of potent glyphosate herbicides be suspended until the government complies with the Environmental Management Plan for the eradication program, and conducts a series of required studies intended to protect human health and the environment. This verdict supplements earlier declarations by the Colombian Constitutional Court and the State Council, which respectively ordered the suspension of spraying in indigenous territories and full compliance with the Environmental Management Plan approved by the Ministry of Environment. According to Yamile Salinas of the Colombian Ombudsman’s Office, “This ruling recognizes the potential risks that the herbicide and the manner in which it is being applied pose to human health and the environment in Colombia,” She added that, “The application of the precautionary principle is of singular importance because the Court affirms that the significant and potentially irreparable risk posed by the spraying is reason enough to suspend the fumigation program.” “The US Congress has required the State Department to evaluate environmental and health impacts of Plan Colombia. This decision by a court in Colombia must be taken into account by the US State Department,” said Anna Cederstav, staff scientist with Earthjustice and AIDA. “In light of the evidence presented and the court’s clear decision on this matter, the Department of State cannot certify to Congress that the herbicide mixture, in the manner it is being used, poses no unreasonable risks or adverse effects to humans or the environment, or that the herbicide is being used in compliance with the Environmental Management Plan for the program.” She concluded that, “It would be highly irresponsible for the United States to continue the eradication program in contravention of the Colombian court order to suspend the spraying until appropriate public health and environmental protections are in place.” “This court order formally adopts many of the requirements for environmental and human protection that the Colombian Ombudsman and Comptroller General, along with both national and international non-government organizations, have been demanding for years,” said Yamile Salinas. “This decision is a victory for both public health and the environment of Colombia.” Press Contacts: Anna Cederstav, Staff Scientist with Earthjustice and AIDA, (Oakland, CA) tel. 510-550-6700 Yamile Salinas, Colombian Ombudsman’s Office, (Bogotá, Colombia) tel. 571-314-7300 Ext. 2324
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La Oroya Cannot Wait
This publication is the product of a careful analysis of official environmental monitoring reports submitted for the Doe Run multi-metal smelter to the Peruvian Ministry of Energy and Mines between 1996 and 2001. By finally filling the void in public information about contamination levels in La Oroya, this work demonstrates that the right to access information is an essential pillar of citizen participation. Only with these type of facts in hand can civil society protect itself against the powerful interests of giant mining companies like Doe Run. The reader will come to understand the severe health problems and risks suffered by the local population and particulary the children in La Oroya. But the authors go beyond this. They suggest the implementation of corrective and preventive measures that will require the participation of not only the company but also the Peruvian State. These are actions that cannot be postponed if we are to guarantee the human right to health, improve quality of life, and permit development in Peru. The authors also provide a legal analysis of environmental protection in the minerals sector, and recommendations for making this system more effective. Above all, this publication is an invitation to take meaningful and timely steps toward solving the extraordinary environmental and human health problems in La Oroya. Read and download the publication
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