Airborne fungal spores exposure limits

airborne fungal spores

A common question often asked is what are the airborne fungal spores exposure limits in both indoor and outdoor environments? In other words, what are the maximum spore concentrations that a healthy person can inhale without getting sick? While there are no universally acceptable airborne fungal spores exposure limits, existing evidence suggests such limits would probably be hundreds of times higher than what the majority of people are exposed to daily. Airborne fungal spores … [Read more...]

Using Molds As Forensic Tools In Building Investigations

One question we often receive is whether there are some molds that are specific to marijuana grow ops. Well, if there were some, we could use them as forensic tools to detect buildings that were ever used as grow ops long after the operations were discontinued. Recent research has shown that molds can effectively be used as forensic tools to help investigators to connect a victim and suspect, determine a location of crime, help define cause of death, estimate interval since death, and de … [Read more...]

Can a Landlord Sue a Tenant for Mold Growth?

Indoor Molds on Walls

Can a landlord sue a tenant for mold growth? Recently, I came across some rather misleading advice online. The advice stated that as a tenant, if you suffered from any illness due to mold contamination in your rented home, then you could sue your landlord for compensation and damage. All you need to do is to provide evidence of mold contamination and a report from a home inspector which confirming the presence of mold in the rental home. Also get the air quality tested to determine if there were … [Read more...]

Are Indoor Molds Really a Health Hazard?

Indoor Molds on Walls

It is always debated as to whether indoor molds can actually cause health problems. To able to answer this question, it is important to understand what indoor molds are and what they can and cannot do. Molds belong to a group (kingdom) of organisms called Fungi. This kingdom consists of not just molds but also yeasts, and mushrooms. For the purpose of this discussion we will restrict ourselves to molds. Based on their lifestyles, we can categorize molds into 3 groups. These are: 1. Sy … [Read more...]

Let’s understand moulds- their good and bad aspects

Colonies of moulds

Moulds (or mildew) are fungi. Fungi are neither plant nor animal but, since 1969, have their own kingdom. The fungi kingdom includes such wonderful organisms as the delicious edible mushrooms, the makers of the "miracle drug" penicillin and the yeast that makes our bread rise and our fine wines ferment. Biologically, all fungi have defined cell walls, lack chlorophyll and reproduce by means of spores. Approximately 100,000 species of fungi have been described and it is estimated that there are … [Read more...]

Could Mold Trigger Parkinson Disease?

black mold on drywall

Parkinson disease (PD), a common movement disorder in humans was discovered in 1817 by a British doctor, Dr. James Parkinson. The exact causes of Parkinson disease are poorly understood but recent studies suggest that several environmental agents including microbial volatile organic compounds (MVOCs), may be involved. The symptoms of Parkinson disease include tremor, rigidity, slowness and stiffness of muscles; impaired balance and difficulty with walking; loss of volume and clarity of speech; t … [Read more...]

Mold Allergy Symptoms

Sneezing due to mold exposure

Mold allergy symptoms can be defined as damaging immune responses by the body to mold and/or mold byproducts. Molds are microscopic fungi characterized by having a body structure made up of thin branching thread-like filaments. Mold spores and fragments contain irritating substances called allergens that trigger allergy reactions. Some molds also produce toxic substances called mycotoxins that are well documented for their health effects. Individuals who are most likely to show mold allergy … [Read more...]

Mold Exposure At Home And The Workplace

Mold allergy symptoms

Mold exposure at home and the workplace can cause allergy in susceptible individuals. Mold allergy symptoms may be difficult to isolate from those caused by other allergy triggers (allergens) such as pollen, dust mites, cockroach allergens, animal allergens (hair, dander, saliva) and chemicals. Pollen is generally an outdoor problem although it could, in summer, infiltrate into the indoor environment from outdoors. Pollen is produced outdoors by weeds, grasses and trees. The allergens must be inh … [Read more...]

A fungal disease that is spreading throughout Canada and Northwestern USA

Colonies of Penicillium. Penicillium rarely cause fungal disease

A rare fungal disease, Cryptococcosis, has recently been shown to be quickly spreading throughout Canada and Northwestern USA. Cryptococcus gattii, the fungus that causes the fungal disease, cryptococcosis is soilborne and is also associated with certain trees such as eucalyptus, pine or fir trees. It was previously only known in warmer climates throughout the tropics. However, since 1999, outbreaks of highly infectious strains of the fungus have been reported in the cooler areas of Canada and N … [Read more...]

Risk of Mold Growth Outbreak after Flooding

Mold growth outbreak in homes and commercial building after flooding is inevitable.  Although the flooded buildings could have been dried, some moisture can remain in drywall, wood furniture, cloth, carpet, and other household items and surfaces and could lead to mold growth. Exposure to mold can cause health problems such as hay-fever-like reactions (such as stuffy nose, red, watery or itchy eyes, sneezing) and asthma attacks. It is important to completely dry water-damaged areas and items w … [Read more...]

Mold & Bacteria Consulting Laboratories (MBL) Inc
1020 Brevik Place, Unit 1A • Mississauga, ON   L4W 4N7 • Canada • phone: 905-290-9101 • toll-free: 1-866-813-0648 • fax: 905-290-0499.

204 – 4475 Wayburne Drive • Burnaby, BC  V5G 4X4 • Canada • phone: 604-435-6555 • fax:604-435-6553.