The Effect of Environmental Factors on Total Arsenic Accumulation in Sarcodia suiae, Rhodophyta

2018 ◽  
Vol 102 (3) ◽  
pp. 385-390 ◽  
Author(s):  
Meng-Chou Lee ◽  
Mary Joy Halog Libatique ◽  
Siao-Yu Yeh
2001 ◽  
Vol 36 (6) ◽  
pp. 849-861 ◽  
Author(s):  
Pedro Aracil ◽  
Francisco Burló ◽  
Yolanda Lario ◽  
Domingo Martínez-Romero ◽  
Daniel Valero ◽  
...  

2015 ◽  
Vol 44 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Abdul Aziz ◽  
Shah Mohammad Ullah ◽  
Md Rafique Ullah

Rice plants absorb substantial amount of arsenic when grown in rice field soil containing 3.21 mg/kg arsenic and irrigated with contaminated groundwater from a shallow tube-well having 476 ± 3 ?g arsenic/l at Sonargaon, Bangladesh. It is revealed that highest total arsenic accumulation occurred in roots (5.790 ± 0.337 mg/kg) followed by shoots (3.766 ± 0.370 mg/kg) and brown-rice grains (2.552 ± 0.507 mg/kg). The concentration of total arsenic in rice grains was beyond permissible limit (1.00 mg/kg) for human consumption. At the time of harvest 4.90 ± 1.11 - 8.27 ± 1.35 mg As/kg soil remained in the rice field soil. However, majority of the soil arsenic is washed out by rain and flood water leaving more than 3.00 mg As/kg soil after flood period which along with high level of As contaminated groundwater for irrigation, elevated the level (up to 8.27 ± 1.35 mg As/kg soil) beyond permissible limit of e.g. in USA it is 5 mg/kg soils for agriculture use. To keep the environment clean, surface water for irrigation has been suggested. DOI: http://dx.doi.org/10.3329/bjb.v44i1.22728 Bangladesh J. Bot. 44(1): 85-89, 2015 (March)


1962 ◽  
Vol 42 (1) ◽  
pp. 77-80 ◽  
Author(s):  
R. F. Bishop ◽  
D. Chisholm

Use of arsenicals for insect control has resulted in an appreciable accumulation of arsenic in the surface soil of Annapolis Valley apple orchards. Levels of total arsenic in 25 representative orchards ranged from 9.8 to 124.4 p.p.m., whereas the content of comparable samples taken in non-orchard land ranged from a trace to 7.9 p.p.m. In some orchards the arsenic accumulation is of sufficient magnitude to be detrimental to the growth of such arsenic sensitive crops as peas and beans.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Chomkamon Ubonnuch ◽  
Suthep Ruangwises ◽  
Wandee Gritsanapan ◽  
Nongluck Ruangwises

The arsenic accumulation in rhizomes of Zingiberaceous plants was determined by atomic absorption spectrometry interfaced with hydride generation system (HG-AAS). The raw herbal materials, rhizomes, were collected from different regions of Thailand between December 2011 and January 2012. Six well-known Zingiberaceous plants, 16 samples from each and a total of 96 samples, were analyzedAlpinia galanga(Khaa),Boesenbergia rotunda(Kra-chaai),Curcuma longa(Khamin-chan),Curcuma zedoaria(Khamin-oi),Zingiber cassumunar(Plai) andZingiber officinale(Ginger). Concentrations of total arsenic based on dry weight were92.4±9.2,103.5±20.8,61.7±12.5,89.8±17.5,106.7±19.5and69.3±11.8 ng/g, respectively and inorganic arsenic were48.8±7.0,66.3±12.7,25.5±5.0,38.7±4.7,71.2±11.6, and38.5±5.5 ng/g, respectively. Among these, Plai and Kra-chaai exhibited the highest levels of total arsenic and inorganic arsenic accumulation that remind consumers to be aware of excess consuming of these rhizomes. On the contrary, the lowest value found in Khamin-chan indicating natural dietary supplements and herbal medicines comprising Kamin-chan are safe from arsenic poison. All investigated amounts of total and inorganic arsenic were much lower than limits recommended by Thai Food and Drug Administration.


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