They confirm high pollution values ​​in San Nicolás after the explosion in Atanor

They confirm high pollution values ​​in San Nicolás after the explosion in Atanor
They confirm high pollution values ​​in San Nicolás after the explosion in Atanor

They confirm high pollution values ​​in San Nicolás after the explosion in Atanor

The environmental organization Greenpeace published this Thursday the results of the samples that a team took in St nicolasin the vicinity of the Athanor plantbehind the burst of a reactor that occurred on March 20. Through swabs, the environmental organization detected high rates of atrazine, a toxic compound banned by the European Union in 2004 and the United States.

The analysis of the samples taken on March 22, 48 hours after the explosion, Atrazine was detected in all the sampled points, in a radius ranging from 150 to 350 meters from the plant.

It’s about a toxic compound banned in the European Union since 2004 and restricted in the United States. It is one of the most used herbicides in the country. It is estimated that this substance can remain in the environment for up to one hundred days..

Precisely, The samples were collected from the walls of the homes and sidewalks. Also, a sampling of ground in front of the factory.

Release of pesticides after the explosion in Atanor

Activists from the organization had visited the vicinity of the Atanor plant in the Buenos Aires town of San Nicolás after the explosion with release of pesticides, which took place on March 20, 2024, to collect information and testimonies about what happened.

These results confirmed, once again, the impacts of the manufacture of atrazine in the community, as residents have been denouncing for years, and as emerged from court rulings.


After the explosion of a reactor at the Atanor agrochemical factory, located in San Nicolás, Justice ordered the closure of the plant this Wednesday.

“The stories of the pollution caused by Atanor are not recent. This company has had repeated complaints from neighbors for two decades.“Some came to justice for the pollution to which they were exposed,” said Leonel Mingo, coordinator of Greenpeace’s toxic campaign.

>>Read more: Historic ruling against a firm for contaminating the Paraná and causing severe health damage

Atanor continues its activities despite a court ruling last year for polluting and causing severe damage to people’s health.“, broad.

These new samples provide concrete data on atrazine contamination in San Nicolás. “We will continue to expose the contamination and demand that the causes and impact of the explosion be urgently investigated,” Mingo added.

Atanor: results of sample analysis

Samples were taken from the walls and floors of neighboring houses, outside the street, using swabs.

The first sample showed 1.555 µg/cm2, while the second was 1.775 µg/cm2. Meanwhile, in the second place, samples were taken by swab on the sidewalk in front of the Atanor plant and soil samples were also taken at the same point.

In the third sample, through swab, the values ​​showed 11.083 µg/cm2, while in the fourth the sampling indicated 481.83 ± 60.27 µg/kg.

Read more: Explosion in Atanor: Greenpeace warns that traces of atrazine remain on public roads in San Nicolás

These results indicate the highest concentration in the sample 3 with respect to samples 1 and 2indicating the proximity to the point where the compound was released and reinforcing the dispersion results towards the neighborhood where samples 1 and 2 were taken.

From Greenpeace they pointed out that The soil sample has a high concentration, regardless of a high deviation due to the heterogeneity of the sample..

What is atrazine

The atrazine it’s a herbicide that It has been marketed since the 60s. It is a toxic compound that is mainly used for weed control. In Argentina, it is one of the three most used pesticides, despite the fact that it is prohibited in 37 countries, including the European Union..

The national Ministry of the Environment analyzed in 2021 the impacts of the herbicide on the environment and health and noted “the risks inherent in the use of atrazine as a herbicide.”

It should be noted that human exposure to this chemical product occurs through different routes and exposure scenarios and this can cause a multiplicity of harmful effects. This herbicide is moderately persistent in soil and water (between 30 and 100 days).

Greenpeace had already criminally denounced the company for water contamination in 1998. At that time, Atanor had a plant in Llavallol and samples taken from Arroyo Rey (part of the Matanza – Riachuelo basin) were analyzed, through which contamination with toxic elements was confirmed.

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