Shah Mohammad Ullah (Bengali: শাহ মোঃ উললাহ), is a Bangladeshi-Austrian soil scientist and environmentalist, who primarily researches arsenic contamination in the air and water.
[5] He predicted that the entry of metals into the food chain through plant uptake might cause health hazards and also environmental problems in 1999.
[6] In 2010, Dhaka, the capital of Bangladesh saw a large number of deaths among the trees growing in the city according to The Daily Star.
Besides, a rise in sulphuric, nitric, hydrochloric and other types of acid in the air could also cause the leaves of trees to decay, thereby killing them.
[citation needed] On 23 April 2019, a lawsuit was filed against Ullah under the Digital Security Act's sections 25, 29, and 31, along with the Dhaka Cyber Tribunal.