In this work the variation in the elimination capacity of a biofilter as a function of the gas flow and toluene concentration was studied. A bioreactor 0.75 m highÃ14.5 cm diameter was used, divided into three equal stages, using compost to support the microorganisms, and sea shells to control the pH.
Mistletoe and holly have poisonous berries and are dangerous if large amounts are consumed. Poinsettias have bad side effects if eaten by your dog. Chamomile, alfalfa, comfry, penny royal and garlic are dangerous herbs for dogs to eat.
They are  considered toxic to dogs because they tend to cause  gastrointestinal upsets, lethargy, vomiting and muscle tremors or  stiffness.  Mushrooms: Various species of mushrooms are  toxic to dogs, and can cause shock and death. Effects will differ  depending on the type ingested, but avoid feeding any type.