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You are here: Home / Archives for air

Fungal investigations in public buildings, workplaces, and homes

Jackson Kung'u

Investigation of fungal contamination in indoor environments normally includes visual inspection and sampling. The samples to collect, the number, when and where to collect them and the methods to be used for sample analyses depends on the objectives or goal of the investigation. The samples that may be collected include air, dust or bulk samples. Swabs or clear cellophane tape can be used to sample for fungi from contaminated surfaces. The samples can be analyzed by either direct microscopy or by culture methods depending on the type of data required.

Filed Under: Fungi, Microbial Sampling Tagged With: air, bulk, dust, fungal contamination, Fungi, samples, swabs

How To Collect Mold And Bacteria Samples From Air

Jackson Kung'u

Collecting mold and bacteria samples from air is very easy. The first thing to decide is the kind of results you want and for what purpose. This will help you to decide on the sampling equipment and the media to use. For example, if sampling for a specific bacterium or fungus, you would want to use a sampling agar media that is suitable for the growth of the target organism. The efficiency of the air sampling pumps for the collection of the target organism has also to be considered.

Sampling equipment can be expensive. However, for a company that does not collect air samples every other week, renting the equipment is a better option. Sampling media can be obtained directly from the manufacturers or their resale agents. For companies collecting only a few samples in a month, sampling media can be obtained from a good mold testing laboratory.

Filed Under: Bacteria, Fungi, Microbial Sampling Tagged With: air, Bacteria, samples, sampling

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Salmonella food poisoning and symptoms

Salmonella food poisoning has been a growing concern in recent news. It has frequently lead to recalls of beef, salads and organic products and, even peanut butter products. Salmonella food poisoning occurs when one eats raw or undercooked foods such meat, poultry, eggs or egg products. Properly cooked food can get contaminated with Salmonella if […]

Legionella pneumophila – Guidelines for Laboratory Interpretation

Legionella pneumophila is a Gram negative, aerobic bacteria that is characterized as an opportunistic pathogen. It is the cause of Legionnaires’ Disease, a severe form of pneumonia and, it is the cause of Pontiac fever, a non-pneumonic form of L. pneumophila infection. Legionella spp.’s mode of transmission is through aerosols or aspiration of contaminated water. The Public Health […]

The Indoor Mold Is An Early Warning Device

The mold (or mould, in the Queen’s English) has been the victim of a bad press. Mention the word and it conjures up an image of something rotting or in the process of decomposition. And yet, were it not for the mold that inspired the discovery of penicillin millions of lives would have been lost. […]

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