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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Organizations, coalitions, academia, and specialists support victims of toxic contamination in La Oroya
Experts filed 15 amicus briefs before the Inter-American Court of Human Rights upholding the central argument of the case: that the government of Peru is responsible for violating the human rights of residents of La Oroya for the lack of urgent and effective actions to address pollution from a metal smelter, and its harmful effects. San José, Costa Rica. Organizations, coalitions, academia, and specialists presented 15 legal briefs (Amicus curiae) before the Inter-American Court of Human Rights to support the case of residents of La Oroya against the government of Peru, for human rights resulting from a metal plant spewing toxic pollution into the Andean city for nearly 90 years. The briefs contain solid evidence that support the central argument of the case: that the Peruvian government—by not taking urgent and effective action to address the pollutions and its effects—is responsible for the violation of the rights to life, health, personal integrity, childhood, and a healthy environment of the residents of La Oroya. This argument as expressed in a public audience on October 12 and 13, when the international court heard from witnesses, experts, victims, and government representatives. The briefs, sent to the Court between October 11 and 28, demonstrate that the importance of the case surpasses the Peruvian context and represents a historic opportunity to establish a key precedent in Latin America, and the world, that strengthens the right to a healthy environment and government’s role supervising business activities. One of the briefs was presented by the University Network for Human Rights in partnership with a panel of experts: five former authorities from the Inter-American Commission on Human Rights (Tracy Robinson, James Cavallaro, Paulo de Tarso Vannuchi, Flávia Piovesan and Paulo Abrão) and three former Special Rapporteurs to the United Nations (John Knox, James Anaya, and Juan Méndez). Briefs were presented by Peruvian organizations— including the Technical Committee for Environmental and Human Health and the Civil Society Platform on Business and Human Rights—as well as from other countries in Latin America—the Mexican Center for Environmental Law (Mexico), Defensoria Ambiental (Chile), and Justice for Nature (Costa Rica)—and international organizations such as Earthjustice and The Center for Justice and Environmental Law. Furthering the international scope of the hearing, The Working Group for Strategic Litigation of Red-DESC and the United Nations Working Group on Business and Human Rights. From the academic sector, support came from the Human Rights Research and Education Center of the University of Ottawa (Canada), the Clinic for Human Rights of the Postgraduate Law School of the Pontificia Catholic University of Paraná (Brazil), and the Legal Clinic of Environmental and Public Health of the University of the Andes (Colombia). Other writings were presented by experts on the issues that the case addresses: David R. Boyd, Special Rapporteur to the UN on human rights and the environment, medical anthropologist Susana Ramírez, and attorneys Carla Luzuriaga-Salinas, Macarena Martinic Cristensen, and Ezio Costa Cordella. Following the hearing and the briefs, the next step in the legal process is to present written closing arguments a potential visit to La Oroya by the judges from the Court. The sentence, which cannot be appealed, is expected within six months. press contact Víctor Quintanilla (Mexico), AIDA, [email protected], +525570522107
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Victims of toxic contamination in La Oroya take their voice before the Inter-American Court
There’s no deadline that won’t be met. And so, after a 20-year quest for justice, the habitants of the small Andean city of La Oroya, Peru appeared before the Inter-American Court of Human Rights. On October 12 and 13, the judges of the high international court heard their complaint against the government of Peru for the serious violation of human rights derived from a metal smelter that has contaminated La Oroya for almost 90 years. The city has been documented as one of the most polluted places on the planet. "The contamination from the La Oroya Metallurgical Complex has permeated every component of its inhabitants' environment: the water they drink, the soil they walk on, the air they breathe, the schoolyards and the mountains that frame their living environment," said AIDA's attorney Liliana Avila, as she presenting closing arguments in the case. Brave Testimonies At the hearing in Montevideo, Uruguay, three affected former residents of La Oroya gave their testimony. They are just a few of the more than 80 courageous people who filed the lawsuit—those residents willing to defend their right to live in a healthy environment despite the context of harassment they have faced because of it. "The period in which the metal smelter developed was disastrous. The toxic gases emanating from the complex created a thick mist that turned into a dandruff that coated the faces of the children,” recalled Rosa Amaro, a 74-year-old mother who chaired the Movement for Health in La Oroya, where she lived until 2017. “We tried to survive, but the government was like a father who turned his back to us.” Dressed in warm clothes and a woolen hat, Rosa's face, body and voice bore the indelible marks of the passing years, deteriorating health and the fear that forced her to leave her hometown. "They call us enemies of La Oroya." In tears, Rosa expressed to the court her desire to return home and to see her name cleared of all stigmas. "Our struggle is not for one, it is for an entire population". The case represents many more residents of La Oroya who, for fear of reprisals, are not named in the lawsuit. After testifying, Rosa felt relieved of a heavy burden and with enough strength to continue. The population of La Oroya has breathed multiple toxic substances that, according to scientific evidence, cause serious risks to human health. The contamination with lead and other heavy metals has burst into their respiratory system, traveled through their bloodstream and has been deposited imperceptibly in their vital organs. "I didn’t have a childhood because I spent it locked up in four walls, not because they wouldn’t let me go out, but because of the discomfort, because our throats were itchy,” Maricruz Aliaga, 28, told the court. “When we went to school, my mother protected us [from the ashes] with a hat." The contamination has affected her memory and is the reason why, even today, her body is paralyzed several times a year. “In Huancayo, I could breathe.” As a child, Maricruz’s vacations to the neighboring city made her realize that it was not normal to watch the plants she took to school die after just 15 days. Following a lifetime of hostility due to her family’s activism, she now lives in another city, and the effects on their health were her main motivation to study nursing. The toxic elements from the smelter remain in the bodies of those who lived and grew in La Oroya. Their presence has caused health problems, many of them irreversible, and may generate new illnesses in the future. "The only thing we want, since we are no longer going to enjoy good health—that is already done, my health is already destroyed—is for future generations to enjoy good health," Yolanda Zurita added in her testimony before the court. "That will be our reward, our satisfaction; that is what we are looking for." The road to justice Reaching this point has not been easy. On behalf of the victims, and with the support of the Asociación Pro Derechos Humanos (APRODEH), in 2006 AIDA filed the international complaint against the Peruvian government. Finally, in October 2021—15 years after the process began—the Inter-American Commission on Human Rights (IACHR) established the government's responsibility for right violations and referred the case to the Inter-American Court. Preparation for the hearing began at that time and intensified in the weeks leading up to it. The long hours of work were reflected in the solidity with which we demonstrated that the government is responsible for violating the rights to life, health, personal integrity, children and a healthy environment of the inhabitants of La Oroya. At the hearing we presented four main arguments: The existence of serious environmental contamination, The risk and causal link with the damages derived from that contamination, The government’s knowledge of that situation, and The absence of urgent and effective measures to respond to it. In addition, we called in experts whose testimony amply supported our allegations. Two of them presented their findings at the hearing. "The duty of care does not arise with clinical harm, but with the risk of harm," emphasized Marcos Orellana, UN Special Rapporteur on the human rights implications of exposure to hazardous substances and toxic waste. In addition, Marisol Yañez, a psychosocial expert, demonstrated based on 61 in-depth interviews, four focus groups and psychometric tests the existence of "environmental suffering," aggravated by impunity and stigmatization. After the hearing, there remains the written presentation of the arguments and a potential visit to La Oroya by the judges of the Court. The sentence, which cannot be appealed, is expected within the next six months. The importance of the case goes beyond the Peruvian context and represents a historic opportunity to establish a key precedent for all of Latin America. "This is the first case before this court with the potential to develop in-depth violations of the right to a healthy environment as the result of government action regarding public and private companies,” explained Jorge Meza Flores, deputy executive secretary of the IACHR's Petitions and Cases System. Taking into account what is at stake is undoubtedly fundamental when the national debate around La Oroya has prioritized, even in these days, the possible reactivation of the metal smelter over the protection of the fundamental rights and health of an entire population.
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