**2.2 Arsenic in environment**

Arsenic (As) is non-essential metal. Arsenic is also present in pyrotechnics, in bronzing and hardening other metals. Arsenic is originated from the weathering of rocks and mineral, volcanic eruptions, fossil fuels, agricultural products, preservatives, medicinal products and industrial activities. Herbicides, pesticides, insecticides, fungicides and fertilizers also contribute to arsenic contamination and extremely deadly and carcinogenic [12] (**Figure 2**).
