Firefighters have been fighting a toxic gas leak for more than 60 hours in Manaus An area of ??approximately 300 meters around the company Innova, in Manaus, remains isolated this Saturday (18), the third day after the leak of toxic styrene monomer gas in one of the factory's tanks. The leak at Innova was recorded at 5:36 pm on Wednesday (15), after the product stored in the reservoir showed an abnormal increase in temperature. Styrene monomer, a substance released in the incident, is a toxic chemical used in the manufacture of plastics and rubber. As informed by the Government of Amazonas on Saturday afternoon, isolation remains as a safety measure. There is no official release date. ? Join the g1 AM channel on WhatsApp Firefighters continue to use laser equipment to monitor the internal temperature of the tank and cool the external part. According to Rede Amazônica, this Saturday morning, the containment work showed progress. The release of vapors lost strength and the smoke coming out of the reservoir gave way, becoming almost invisible. However, teams remain on alert at the site because the strong odor of the chemical is still noticeable in front of the factory. According to the Government of Amazonas, 35 military personnel participated in the first containment work after the company was activated. Since then, firefighters have remained on site to ensure the safety of the operation. Firefighters working to cool a tank where toxic gas leaked in Manaus. Ruthiene Bindá/Rede Amazônica Patient care The State Department of Health of Amazonas (SES-AM) confirmed that, until this Saturday, 213 patients had sought care in the public health network with symptoms associated with gas inhalation. The patient, who was admitted to the ICU, was transferred to the ward, where he is recovering. SES-AM also recorded the death of a 67-year-old man who sought care after reporting discomfort caused by the effects of the leak. However, the department reported that the patient had a history of chronic respiratory disease and that no direct relationship was found between the death and the incident. In addition to the state health network, 147 people were treated in a private hospital and another 57 in health units in the city of Manaus. Crack in the structure under monitoring During the technical inspections carried out in the reservoir, a crack was identified in the containment base of the tank that stored the styrene monomer. The appearance of cracks is attributed to the abnormal and extreme rise in the internal temperature of the chemical recorded at the beginning of the leak. Company engineers and experts from the Fire Department carry out rigorous, real-time monitoring of these deformities to ensure that there are no new liquid leaks or worsening of the tank's structural compromise during the final cooling stages. Partial closure of the company The company where a gas leak occurred in Manaus is partially banned. Leandro Guedes/Rede Amazônica Due to the severity of the incident and the risks still present at the site, inspection and environmental protection bodies determined the partial closure of the Innova factory facilities. The measure aims to halt activities in areas directly affected by the leak to ensure the safety of workers and experts working to contain the substance. The full resumption of operations at the industrial plant is conditional on the complete elimination of the risk of new chemical reactions and the presentation of technical reports that attest to the stability of the area. The Pronto Atendimento ao Cidadão (PAC) Studio 5, which had interrupted services on Thursday (16), resumed operations this Friday. Companies in the Industrial District also adopted preventive measures on Thursday (16). g1 contacted the Metalworkers Union of Amazonas to find out if there were new releases or changes in the companies' activities, but did not receive a response until the last update of this report. Fines exceed R$ 20 million Innova was fined more than R$ 20 million by Manaus City Hall after technical inspections carried out by the Amazonas Environmental Protection Institute (Ipaam) and by a task force formed by the Municipal Secretariat for the Environment and Sustainability (Semmas), Municipal Institute of Urban Planning (Implurb), Municipal Health Secretariat (Semsa) and Executive Secretariat for Civil Protection and Defense (Sepdec). On Friday (17), the company was fined at 35 thousand Municipal Tax Units (UFMs), the equivalent of R$5,347,300, for soil and water body pollution. The city hall identified, with the help of drones equipped with thermal cameras, cracks in part of the tank and confirmed that the leak was continuing. On Thursday (16), the city hall had already imposed another fine on the company, of 30 thousand UFMs, equivalent to R$4,554,300, for air pollution caused by gas emissions. Added together, the fines reach R$22,401,600.00. The funds collected from the fines imposed by the city hall will be allocated to the Municipal Fund for Development and the Environment (FMDMA), responsible for financing the municipality's environmental policy actions. The State Government did not inform the destination of the amount. g1 contacted Innova about the fine, but did not receive a response until the last update of this report. The Amazonas Environmental Protection Institute (Ipaam) monitors the execution of the company's Emergency Action Plan and monitors the measures adopted to minimize possible environmental impacts. According to the agency, the company's operating license is valid until October 2026. Civil Defense reported that measurements carried out in monitored areas close to the occurrence indicate concentrations below 20 parts per million (ppm), without changes that indicate worsening of the quality conditions of the