WHAT DOES CONSTRUCTION DUST DO TO YOU, ME AND YOUR ANIMAL?Breathing in constructions dust can cause you to have illnesses such as* lung cancer * silicosis * Chronic Obstructive Pulmonary Disorder (see also
Chronic obstructive pulmonary disease (COPD)[3] )
* asthma (see also the Asthma site
The OSH Answers document Extrinsic Allergic Alveolitis has more information about diseases from exposure to organic dusts.
Pigeons have been associated with a variety of diseases, including histoplasmosis and cryptococcosis. Histoplasmosis is a disease caused by a fungus that grows in pigeon droppings. ... When removing droppings, people may breathe in some of the fungus. When exposure is high, the fungus can cause infection.
For more information check the links below
https://www.canada.ca/en/health-canada/services/pest-control-tips/pigeons.html
http://pureaircontrols.com/human-health-dangers-bird-droppings-associated-building-hvac-systems/
Canadian woman battling crippling disease caused by pigeon poop
Below is a link to the news article listed by the Globe and Mail
Pigeon poop causes 60 diseases’
The Health Risks of Bird Droppings
https://www.skedaddlewildlife.com/the-health-risks-of-bird-droppings/
Hidden Dangers of Cat Feces
Cat feces are particularly known to be responsible for many fatal diseases including Toxoplasmosis and Escherichia Coli bacterial infection
Cat urine is also harmful to humans. If cat urine is allowed to sit for long hours without cleaning, it can emit ammonia which could lead to severe allergic reactions in humans. Typical symptoms of cat urine allergy include: red eyes, itchiness of the skin, nose etc, sneezing, headaches, dizziness, nausea, vomiting, coughing etc. Highly concentrated ammonia in cat urine can also cause dangerous diseases like pneumonia and bronchitis. Kids are at a greater risk from these infections owing to lower immunity and body weight ratio compared to adults.