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Submitted: 23 December 2018 Modified: 24 December 2018
HERDIN Record #: CAR-CRHRDC-18122322255923

Phytoremediation capacity of the Silver Fern (Pityrogramma calomelanos) on the contaminated soils of Poblacion, Itogeon, Benguet .

1T.P. Colallad,
2V.P. Castillo,
3G.P. Gattud,
4C.G.H. Colobong,
5C.C De Jesus,
6R.A.J. Felix,
7S.R.C. Pantig
School of Natural Sciences - Saint Louis University



Phytoremediation is one promising solution to lessen pollution. In this way, the plants are used as a means to absorb the contaminants or metals present in the soil. It has been already known that certain fern species have the capacity to hyperaccumulate heavy metals (Miller et. al, 2004). This study aimed to determine if the silver fern (Pityrogramma calomelanos) has the same capacity of hyperaccumulatig lead and mercury through phytoremediation. The plant was harvested from Poblacion, Itogon, Benguet just a few distance from the resort area. The samples were dried and tested through Atomic Absorption Spectrophotometry to determine the heavy metal hyper accumulated by the silver fern. The samples were further prepared using Flame Atomic Absorption Spectrophotometry for lead determination and using Cold-Vapor Atomic Absorption Spectrophotometry for mercury determination for the Atomic Absorption Spectrophotometry at the Natural Sciences Research Unit (NSRU). Through the AAS, the lead and mercury that were accumulated by the silver fern were determined. The fern has the capacity to accumulate lead and mercury in low amount. Furthermore, the P. calomelanos has the capacity to hyperaccumulate arsenic more than mercury and lead. Also, P. calomelanos takes a longer time to hyperaccumulate mercury and lead.


Publication Type:
Research Report