Classification Guide to Common Mold Types
Hazard Class A: includes fungi or their metabolic products that are highly hazardous to health. These fungi or metabolites should not be present in occupied dwellings. Presence of these fungi in occupied buildings requires immediate attention. Hazard class B: includes those fungi which may cause allergic reactions to occupants if present indoors over a long period. Hazard Class C: includes fungi not known to be a hazard to health.
Absidia corymbifera Absidia corymbifera is found worldwide in soil and decaying organic matter (plant material/compost). In indoor environments, it has been isolated from carpet and mattress dust, potted plant soil and bird droppings. Heath Effects Associated With Absidia corymbifera Absidia corymbifera poses an inhalation and deep skin (dermal) inoculation health risks especially to individuals with weak immune systems.
Aspergillus: Should It Worry You? The mold Aspergillus has close to 200 species and varieties. Aspergillus is widely distributed from the arctic region to the tropics. Aspergillus species are frequently found in air and soil.As concerns indoor air quality the most important species are Aspergillus fumigatus, Aspergillus flavus, Aspergillus clavatus, Aspergillus niger, Aspergillus versicolor. Allergic Reactions. Many species of Aspergillus produce dry, hydrophobic spores that are easily inhaled.
Memnoniella mold, Along with Stachybotrys mold are the two dreaded toxic black molds on the list. This fungi, just like Stachybotrys is highly toxic and not a species you want growing in your home. The memnoniella species is almost identical to Stachybotrys and the only real difference between the two is that former has smaller spores. The problem with smaller mold spores is that its easier to breathe in and penetrate the linings of the lungs.
Stachybotrys Mold, Especially the Stachybotrys chartarum species is the single most toxic black mold you can have in your home. In total there are 50 Stachybotrys species in existence and although it’s not as common as other types its not all that rare either. Stachybotrys has a greenish-black appearance and commonly grows on dust, wood, wallpaper and many other surfaces. It thrives in hot humid conditions, especially after flooding has taken place.
Aureobasidium Aureobasidium (Pullularia) may be pink or black in color It will grow in cooler climates and along with Cladosporium is Because its growth form is yeast-like (and are not forcibly discharged), its cells/spores only become airborne through mechanical disruption of contaminated materials or aspiration of contaminated water Wet spore type Distributed by wind when dried out. It grows in soil, forest soils, fresh water, aerial portion of plants, fruit, marine estuary sediments, wood.
Chaetomium Is a cellulolytic mould commonly found in soil, air, and decaying plant material. There are about 80 species of Chaetomium. The most common ones are Chaetomium atrobrunneum, C. funicola, C. globosum, and C. murorum.
Emericella Emericella nidulans DOVR H[LVWV DV $VSHUJLOOXV QLGXODQV Emericella nidulans is a widespread soil fungus. Indoors it is found in carpet and mattress dust and decomposing wood. Health Effects Associated with Emericella nidulans Emericella nidulans has been reported as a causative agent of aspergillosis in KXPDQV DQG DQLPDOV (PHULFHOOD QLGXODQV SRVHV LQKDODWLRQ DQG GHHS VNLQ GHUPDO inoculation health risks to persons with weak immune systems.
Fusarium Fusarium species exist as plant pathogens or saprophytes on plant debris and in soil. 3ODQW SDUDVLWLF )XVDULXP FDXVHV ZLOWLQJ RI PDQ\ SODQWV LQFOXGLQJ FURSV VXFK DV tomatoes, bananas, sweet potatoes, pigeon peas, and pears. Some species of Fusarium are commonly isolated from seeds, especially those of cereals.
Gliocladium Gliocladium Gliocladium species are saprobes, and commonly strongly cellulolytic. They have a world-wide distribution and are commonly isolated from a wide range of plant debris and soil. Also commonly isolated from mouldy fabrics. Health Effects Associated With Gliocladium Little is known about the medical significance of Gliocladium. However, some species are considered allergenic.
Myrothecium Myrothecium verrucaria Myrothecium verrucaria is common throughout the world. ,W KDV IUHTXHQWO\ EHHQ IRXQG RQ PDWHULDOV VXFK DV SDSHU WH[WLOHV FDQYDV DQG cotton. It is an extremely potent cellulose decomposer. It has been formulated into a pesticide for control of nematodes and weeds. Health Effects Associated With Myrothecium verrucaria Little is known about the medical significance of Myrothecium verrucaria. Oidiodendron Oidiodendron species There are two common species of Oidiodendron.
Paecilomyces 3DHFLORP\FHV VSHFLHV 3DHFLORP\FHV PDUTXDQGLL FRQLGLRSKRUHV DQG VSRUHV 3DHFLORP\FHV PDUTXDQGLL 3DHFLORP\FHV VSHFLHV DUH FRPPRQ HQYLURQPHQWDO PROGV They are widespread in soils, composts, and food products.
PRECAUTIONARY STATEMENTS HAZARDS TO HUMANS AND DOMESTIC ANIMALS DANGER. KEEP OUT OF REACH OF CHILDREN. CORROSIVE. Causes irreversible eye damage and skin burns. Do not get in eyes, on skin or on clothing. Wear goggles or face shield, rubber gloves, and protective clothing. Harmful if swallowed. Remove contaminated clothing and wash before reuse. Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet.
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