Air sampling near by Najafgarh drain crossing to kings-way camp, New Delhi

  Air sampling for determination of NO2 (Nitogen oxide) NH3( Ammonia) and Particular matter (PM2.5&PM10) in the atmosphere near by Najafgarh drain crossing to kings-way camp, behind Guru Teg Bahadur Khalasa College, University of Delhi,Delhi Foldscope image 10 x : PM 2.5 ( By passive sampler)

T. S. of Fern Petiole

T.S. of PETIOLE of Fern without staining., Phloem tissue is made sieve tubes, companion cells are phloem parenchyma.