bg image

Environmental Hygiene and Human Biological Monitoring

The Service “Environmental Hygiene and Human Biological Monitoring” carries out laboratory analyses – chemical and microbiological – in dust, air and surface samples (ISO/IEC 17025 accreditation). In parallel, the Service analyses the concentrations of substances or their metabolites directly in human medical samples, for example blood, urine, hair.  The Service measures not only human biomarkers of exposure (ISO 15189 and ISO/IEC 17025 accreditation), but is expanding its portfolio of human biomarkers of effect relevant in the pathways of disease development and progression.

Our services:

A. Laboratory analyses:

We analyze indoor environment samples (e.g. air, dust and surface) that are collected in patients’ houses, in public buildings, in private companies or at the workplace. Chemical and metal analyses are our historical strengths since the 90’s and we adhere to the international guidelines and state-of-the-art. Since end 2022, the new Laboratory Microbiology of the Built Environment has become operational within the Service.

Furthermore, we also analyze human biological samples, including blood, urine, hair for chemical and microbiological substances and/or their metabolites. This activity, called “human biomonitoring”, allows to monitor and measure the exposure of patients to various substances. Aside from exposure biomarkers, we develop novel health biomarkers and effect biomarkers, playing a role in the pathways of diseases development and progression.

As National Health Laboratory, we limit our analyses for indoor pollution and occupational hygiene to situations with a documented health problem in patients or workers. We thus proceed with analyses following a medical prescription or a request from general practitioners, specialist-physicians, occupational health physicians, safety & health referents or equivalent, or at the request of the Ministry of Health.

For the “human biomonitoring” activity, we also measure in the Luxembourgish population without known health problems. By doing so, we may provide policy-makers with estimates of the exposure and the potential health risks in the general population. This includes also specific time-windows, for example, pregnancy or childhood, during which exposure to harmful substances may have a major impact on health in the later life.

 

Chemistry – indoor air, dust and surface samples:

  • Volatile organic compounds (VOC) in air, for example: benzene and toluene;
  • Aldehydes in air, for example: formaldehyde and acetaldehyde;
  • Semi-volatile organic compounds in dust, for example:
    o Biocides, for example: Chlorpyrifos and DDT;
    o Flame retardants, for example : polybromodiphenyethers (PBDE) and Polychlorbiphenyls (PCB)
    o Plasticizers, for example : phthalates and bisphenol A
    o Polycyclic aromatic hydrocarbons, for example : phenanthrene and pyrene
  • Inorganic elements in dust, for example : lead and mercury

Microbiology – indoor air, dust and surface samples:

  • Molds and yeast in air, dust and surface samples, for example: penicillium sp. and aspergillis sp
  • Allergens in dust samples, for example: dust mites
  • Bacteria in air samples

Chemistry – human biological samples:

  • Inorganic elements:
    o in urine, for example: chromium, mercury and iodine
    o in blood, for example: mercury and lead
    o in serum, for example: copper and zinc
  • Organic compounds:
    o in urine, for example: S-phenyl mercapturic acid (SPMA) and S-benzyl mercapturic acid (SBMA)
    o in serum, for example: Hexabromocyclododecane (HBCDD), polybromodiphenyethers (PBDE) and Polychlorbiphenyls (PCB)

For more information on the performed analyses, please refer to https://lns.lu/carnet-danalyse/

For more information on the ISO/IEC 17025 and ISO15 189 accreditation:

https://portail-qualite.public.lu/content/dam/qualite/fr/accreditation-notification/organismes-accredites/laboratoires/lns-subi/annexe-technique-lns-subi.pdf

https://portail-qualite.public.lu/content/dam/qualite/fr/accreditation-notification/organismes-accredites/laboratoires/lns-subi-15189/annexe-technique-lns-subi.pdf

 

B. Scientific expertise:

Our technical responsible participate in several working groups at (inter-)national level to ensure that the laboratory implements the state-of-the-art in environmental and occupational health. For example: the OECD Expert Group on “Using Adverse Outcome Pathways (AOP) to address combined exposures to chemicals with relevant effect-biomarkers” and Biological Exposure Indices (BEI) Committee of the American Conference of Governmental Industrial Hygienists (ACGIH®) USA.

 

C. Applied research:

We are a major driver in the Health Partnerships in environmental and occupational health:

  • We have set-up and been leading the previous program for Luxembourg, i.e. HBM4EU – Science and policy for a healthy future (July 2018 – June 2022).

HBM4EU was a joint effort of 30 countries, the European Environment Agency and the European Commission, co-funded under Horizon 2020. The initiative has coordinated and advanced human biomonitoring in Europe. HBM4EU has generated evidence of the actual exposure of citizens to chemicals and the possible health effects in order to support policy- making.

(https://www.hbm4eu.eu)

 

  • We have set-up and and are leading the current program for Luxembourg, i.e. PARC – European Partnership for the Assessment of Risks from Chemicals (May 2022 – 2029). For more information on PARC, please see (link to MEDI)

(https://www.eu-parc.eu/)

 

D. Education & Teaching

We accommodate Post-docs, PhD students and internships of Master students. We welcome 1 or 2 students each year. Together with the University of Luxembourg, we are partners in the Euro-African Biomonitoring Network for the assessment of environmental exposure in population through universities and occupational health services (ERASMUS+ Project).

 

Our partners:

  • General practitioners, MD-specialists and hospitals
  • Services of Occupational Medicine (Service de santé au travail multisectoriel, STM and Service de Santé au Travail de l’Industrie, STI)
  • Inspection du Travail et des Mines (ITM)
  • Directorate of Health Luxembourg (DISA)
  • Private laboratories

Our team:

 

the team