Landscaping and even lawn care can be a dangerous job or even an activity if you are working without proper care and equipment. Some factors that lower the safety level are your exposure to heat, using faulty equipment and being around dangerous chemicals.
From 2003 to 2008 at least 109 people died each year while working landscaping. While working landscaping, you are exposed to dangerous plants, insects and animals that could cause allergic reactions if not worse. In the case of allergy, Vince Malfitano could be of service to you.
When dealing with chemicals, they are indeed harmful as they are meant to kill and prevent insects and other pests from coming around. Workers should wear protective clothing to prevent chemicals from entering the body through the nose, eyes, mouth and even open cuts. After handling the chemical, it is advised to wash your hands thoroughly.