1. Achakzai AK, Bazai ZA, Kayani SA (2011) Accumulation of heavy metals by lettuce (Lactuca sativa L.) irrigated with different levels of wastewater of Quetta city. Pak J Bot 43(6):2953. www.pakbs.org/pjbot/PDFs/43(6)/51
2. Adeel Z, Safriel U, Niemeijer D, White R (2005) Ecosystems and human well-being: desertification synthesis. World Resource Institute, Washington, DC. //hdl.handle.net/20.500.11822/8719
3. Adesodun JK, Atayese MO, Agbaje TA, Osadiaye BA, Mafe OF, Soretire AA (2010) Phytoremediation potentials of sunflowers (Tithonia diversifolia and Helianthus annuus) for metals in soils contaminated with zinc and lead nitrates. Water Air Soil Pollut 207(1–4):195–201. https://doi.org/10.1007/s11270-009-0128-3
4. Ai Z, Gao Z, Zhang L, He W, Yin JJ (2013) Core-shell structure dependent reactivity of Fe@Fe2O3 nanowires on aerobic degradation of 4-chlorophenol. Environ Sci Technol 47:5344–5352. https://doi.org/10.1021/es4005202
5. Akter S, Afrin R, Mia M, Hossen M (2014) Phytoremediation of chromium (cr) from tannery effluent by using water lettuce (Pistia stratiotes). ASA Univ Rev 8(2):149