Dust Mite Allergen: An Indoor Problem – Part 2

SamplingVolumetric sampling of the air has repeatedly shown that concentrations of mite allergens are generally very low to undetectable. The International Association of Allergology and Clinical Immunology (IAACI) has recommended sampling settled dust to evaluate exposure to dust mite allergens. The ACGIH has stated that it is important to sample multiple indoor locations to obtain […]

Tips to Aid With Asthma

More than 25 million people in the United States are known to have asthma, of that 7 million are children.  Asthma causes breathing airways, which are like tubes that carry air into and out of the lungs, to become inflamed and narrow.  This causes the sufferer recurring periods of wheezing, chest tightness, shortness of breath […]

Mold & Granite Countertops

We think of granite as impervious to everything, and indeed, it is both hard and strong. Granite is a major part of the continental crust and is composed primarily of quartz, feldspar, mica, and horneblend. Chemically, it is approximately 72% SiO2 and 14% Al2O3 with other compounds comprising less than 5% each. Depending on the […]

Seasonal Pollen – Part 1

Each spring, summer, and fall, the season is filled with lush colors of blooming trees, grasses, and weeds, which release tiny particles. The tiny particles are known as pollen. Pollen has several vectors it uses for mobility; anemophily (movement via wind), entomophily (movement via insects), ornithophily (movement via birds), hydrophily (movement via water), chiropterophily (movement […]

Seasonal Pollen – Part 2

A pollen count, which is familiar to many people from local weather reports, is a measure of how much pollen is in the air. This count represents the concentration of all the pollen, expressed as grains of pollen per cubic meter of air collected over 24 hours. This count is generated by certified Pollen Counters […]

Allergy: Disease & Symptoms – Part 2

Symptoms of Allergic Disease A variety of symptoms can result from IgE-mediated hypersensitivity and resultant exposure to histamine and other mediators. The most common are allergic rhinitis and allergic rhino-conjunctivitis, or essentially, runny itchy noses and eyes. Symptoms include: sneezing, itching nose, eyes, ears and palate, rhinorrhea (runny nose), postnasal drip, congestion, the inability to […]

Allergy: Disease & Symptoms – Part 1

Introduction Allergic disease is among the most common illnesses associated with indoor air exposure. Approximately 35% of the population has the ability to develop allergies to environmental proteins. In some populations this percentage is higher. For many, exposure to dust mite proteins is the precipitating factor inducing sensitization. In others (for example in California), grass […]