SERVICES

We apply a continuous improvement process every day to enhance our quality standards and the competencies of our staff.

We assess the environmental impact of airborne noise on human receptors and native fauna (birds, mammals, amphibians, and reptiles), as well as vibration impacts on people and structures, ensuring compliance with current national and international regulations and guidelines.
Our team of experts has extensive experience in preparing Environmental Impact Declarations and Studies, as well as in monitoring and certifying regulatory compliance. We offer comprehensive and personalized solutions throughout the country.

> Measurement Campaign

We carry out baseline measurements, source characterization, and noise and vibration monitoring in accordance with the procedures established by applicable standards and reference guidelines. This allows us to define permissible limits and assess regulatory compliance for each project.

> Modeling

The projection of noise and vibration levels generated by fixed and mobile sources is performed using validated calculation methodologies and specialized software, ensuring accurate prediction in line with regulatory standards. In addition to projecting levels at receptor points, we generate influence areas for noise and vibration, zones of behavioral and physiological effects on native fauna, and noise contour maps (isophones).

> Regulatory Compliance and Solutions

We assess compliance with permissible standards, including evaluations of synergistic effects, and propose control measures tailored to each project’s needs where necessary—ensuring the implementation of practical solutions that fully meet regulatory requirements.

> Regulations and Guidelines

  • D.S. No. 38/11 MMA: Emission Standard for Noise Generated by Specified Sources.
  • Guide for the Prediction and Evaluation of Noise and Vibration Impacts in the SEIA, SEA, 2019.
  • Evaluation Criteria in the SEIA: Assessment of Noise Impacts on Native Fauna, SEA, 2022.
  • Evaluation Criteria in the SEIA: Assessment of Synergistic Effects Related to Noise Impacts on Public Health, SEA, 2022.
  • Evaluation Criteria in the SEIA: Methodologies for Considering Cumulative and Synergistic Impacts, SEA, 2024.
  • Evaluation Criteria in the SEIA: Considerations for the Prediction and Assessment of Audible Noise Emissions Associated with the Corona Effect in Electrical Transmission Projects, SEA, 2023.
  • Guide for the Application of D.S. No. 38/11 MMA for Wind Farm Projects in the SEIA, SEA, 2020.
  • Transit Noise and Vibration Impact Assessment, Federal Transit Administration (FTA), USA, 2018.
  • ISO 9613-2:1996 Attenuation of sound during propagation outdoors – Part 2: General method of calculation.
  • D.S. 40/12 MMA: Environmental Impact Assessment System Regulation.
  • Law No. 19.300: General Environmental Framework Law, Ministry of the Environment, 2011.

> Equipment

  • Larson Davis LxT1 Sound Level Meter.
  • Larson Davis LxT2 Sound Level Meter.
  • Cesva SC 160 Sound Level Meter.
  • Larson Davis CAL200 Acoustic Calibrator.
  • Larson Davis CAL150 Acoustic Calibrator.
  • Cesva CB004 Acoustic Calibrator.
  • Extension pole and cable for elevated recordings.
  • DJI Spark and FIMI X8 mini drones.
  • 360° cameras.
  • Anemometer.
  • Thermo-hygrometer.
  • PCE Instruments VT 2700 Vibration Meter.
  • Predictor-LimA: Noise prediction and mapping software.
  • NoiseAtWork Type D: Mapping measurement data at workplaces.
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