Building materials are potential sources of VOCs, through degradation of materials or off-gassing from new materials, e.g. solvent-based paints, fabrics and pressed wood products.
Aroma profiling – Understanding the factors that give rise to the aroma differences between similar foods. Food safety – tracking of gases and VOCs giving rise to off-odors, including those that can be used as indicators of food deterioration (shelf-life) or contamination from the materials used in packaging. Food consistency and quality – Ensuring production-line consistency of products from batch to batch.
The monitoring of biotechnological fermentation processes, used for the production of modern biopharmaceutical drugs, is becoming ever more relevant for the promotion of economic production, particularly within the manufacturing sector. Up until now, processes have typically been monitored through off-line analysis, which is laborious, costly and frequently delivers results too late to allow for corrective actions.
Safety & Security
Identifying trace amounts of gases and VOCs that originate from drugs and explosives, to date is solved by sniffer dogs or random sampling. Integrated monitoring is not available.
A study of scented consumer goods showed the products emitted more than 100 different VOCs, including some that are classified as toxic or hazardous by federal laws.
Hazardous gases and VOC emissions can arise from various storage and process sources in manufacturing. Demand for integrated line monitoring for work and product safety is rising.
Nitrogen oxides and VOCs play a significant role in the formation of ozone and fine particulates in the atmosphere. Emerging smog can irritate our eyes, nose and throat, and can finally affect our immune system. Permanent monitoring of NOx and VOCs in large cities can help to locate the sources of the air pollution and to predict smog formation.
VOCs, including formaldehyde, are emitted slowly from indoor building materials, furniture, paints and carpets. VOCs are also released in cigarette smoke and detergents, or drift in from attached garages or outdoor sources. They can contribute to acute conditions (e.g. poisonings) as well as cancers and asthma.
The outgassing behavior of materials used in cleanroom environments has gained importance in various industries, particularly in semiconductor, photovoltaic and aerospace, where a maximum level of VOCs, according to ISO standards, is often defined in the planning phase.