Environmental Division




  • Drinking water
  • Groundwater: identification of the Threshold Concentration of Contamination for the purpose of characterizing potentially contaminated sites
  • Sewage and waste water
  • Pool water

Compost and Fertilizers

  • Quality controls of fertilizers and compost

Emissions in the atmosphere and in working environments

  • Sampling and analysis of atmospheric emissions
  • Determination of workers' exposure to physical, chemical and biological agents

Oil & Fuels

  • Sampling of Oils and Oily Emulsions to be started at the Regeneration or Combustion Plant
  • Analysis, tests and controls on raw materials and formulated products
  • Quantification of the degree of bacterial contamination (due to biofilm and dirt on filters)
  • Classification and analysis of waste fuel disposal and secondary solid fuels (WFD and SSF)
  • Analysis of biofuels such as pellets, wood biomass, pomace, various vegetable oils and other residues of agricultural and agri-food activities that can be exploited for energy purposes


  • Survey plans aimed at capturing and quantifying odours in dynamic olfactometry


  • Study and analysis of the production process, essential for identifying the origin of the waste itself.
  • “Accredia”. accredited product sampling and analysis procedures.
  • Execution of physical and chemical characterization of waste to be sent to landfill or suitable treatment plant.
  • Assistance for the identification of the correct forms of disposal, identifying the best methods both from a technical and economic point of view.

Eco-toxicological tests

  • Extended Biotic Index (EBI)
  • Daphnia magna
  • EC50 TEST of acute toxicity on Daphnia magna
  • Microscopic analysis of activated sludge
  • Viable helminths eggs Method


  • Grounds and soils: identification of the Threshold Concentration of Contamination for the purpose of characterizing potentially contaminated sites.
  • Topsoil and/or excavated earth and rocks to be implemented for recovery or reuse procedures.
  • Agricultural land.


Materials and Objects intended for contact with food (MOCA)

Test for verifying the conformity of surgical masks according to the UNI 14683:2019 standard and in particular:

  • Bacterial Filtration Efficiency (BFE)
  • Breathability check of the differential pressure
  • Microbia8l cleaning BIOBURDEN
  • Spray resistance performed in external service

The Research and Development activity also allows us to study countless requests on various types of products and product classes such as toys or cosmetics. In fact, OSI S.r.l., thanks to a dense network of partner laboratories specialized in various sectors, is able to provide answers quickly and with high data reliability. Over time, this has made it possible to develop a global analytical service not only for chemical and microbiological tests but also for physical and mechanical tests, often essential to comply with the specific standards for product certification.

Execution of environmental characterization plans understood as “the set of activities that allow the reconstruction of the contamination phenomena affecting the environmental matrices, in order to obtain the basic information on which to make achievable and sustainable decisions for the safety and/or site recovery”. Starting from the collection of historical site data, the preliminary conceptual model and preparation of the environmental research plan is being developed in conjunction with the competent authorities, containing the location of the sampling points and the analytical parameters to be researched. If it is certified that the CTC (Contamination Threshold Concentration) has been exceeded, the specific site Risk Analysis is carried out.

This procedure makes it possible to quantify the RTC (Risk Threshold Concentrations) and represents a fundamental step in order to best calibrate and define the recovery procedures and objectives.

With the help of expert geologists and leading companies in the geotechnical sector, ad hoc sampling plans are developed, using the best drilling technologies for coring and installing piezometric wells. Phase sheets are functional for the collection of samples and allow the retrieval of information useful for the preparation of the geological report, such as the elaboration of the stratigraphic analysis or the identification of the groundwater flow. To evaluate the presence of contaminants, metal drums or foreign bodies in the subsoil, non-invasive geophysical techniques can be used, such as electrical tomography or ground penetrating radar.

Before acquiring an industrial site, a production plant or land. it is appropriate to identify and quantify any environmental liabilities that could inevitably influence the apparent market value. To this end, OSI, thanks to the experience gained in the field of characterization and remediation, has drawn up (in compliance with sector standards) its own procedure which guarantees high reliability of the final data.

If the presence of contamination on a site is detected from the characterization phase, it is necessary to intervene with “the execution of environmental reclamation and restoration, safety measures (emergency, operational or permanent)”. The proposed applications take into account the use of the best available technologies (BAT – Best Available Technologies) by applying solutions that are at the same time economically sustainable, proposing on-site remedies or off-site operations.

OSI is registered in Category 9 of the Register of Environmental Managers “Site remediation”


  • Guide to proper waste management within a production site by proposing the best solutions in technical and economic terms. The principle that regulates the applications is based on the foundations of the circular economy, i.e. on the recovery of materials and energy. The referring regulatory framework is very complex.
  • Planning and construction of ecological islands
  • Enrolment in category 8 of the Register of Environmental Managers (brokerage and trade of waste without possession of the waste itself) allows OSI to propose adequate disposal solutions based on the type of EWC code to be disposed of, assessing the hypothesis that the same can be treated in suitable recovery plants.
  • Processing of authorization procedures for the recovery of waste in a simplified or ordinary procedure. Assistance in regulatory and administrative compliance (MUD and SISTRI declarations). Sampling and analysis plan for the purposes of classification and characterization of waste, the company ACCREDIA is accredited for the sampling phases according to the UNI EN 10802 standard.


OSI offers consolidated experience in the planning and construction of technological industrial process plants in the chemical, environmental and energy sectors.

It provides engineering services, in particular on technical process studies aimed at optimization:

  • Production cycles in order to reduce polluting loads
  • Water cycles with partial or total closure of them
  • Conditions of the working environment, industrial hygiene and safety

The company also ensures basic and detailed engineering studies by planning and building:

  • Primary and waste water purification plants
  • Fume treatment plants
  • Odour treatment plants
  • Waste treatment plants, harmlessness and valorisation plants for reuse


  • Development of Pilot Plants with subsequent Full-Scale implementation in the industrial and environmental remediation sectors, aimed at using the best available technologies (BAT)


  • Environmental monitoring strategies (in compliance with authorization requirements)
  • Assistance to Institutions and Supervisory Authorities


  • Assistance to Institutions and Supervisory Authorities
  • UEA – Unified Environmental Authorisation
  • Ipcc / IEA (Integrated Environmental Authorization)
  • Environmental Regulatory Observatory
  • Recovery of waste in simplified and ordinary procedure (MPS/End of Waste)
  • EIA (Environmental Impact Assessment)
  • SEA (Strategic Environmental Assessment)


  • Technical and Regulatory Training Courses, designed for Environmental Managers and figures responsible for the Plant Safety.