Unrestrained utilization of plastic has reached an intemperate state, menacing environment and human lives. The preliminary focus of this research was to investigate and divulge the contemporary status of microplastics (MPs) in commercialized and open pan salts from Cox's Bazar and Maheshkhali channels. A total of 27 samples were obtained. The samples were analyzed for the prevalence of MPs by FTIR and Raman spectroscopy (RS); the prevailing amount, color, size, and shapes were analyzed by stereomicroscope and SEM. The abundance of high‐density polyethylene, polyethylene terephthalate (PET), and low‐density polyethylene (LDPE) were detected by FTIR, meanwhile exuberance of cellulose acetate, polypropylene, PET, LDPE, and Nylon 6 were identified by RS. The average quantifications of MPs in Cox's Bazar, Maheshkhali, and packaged salts were found to be 6851.11 ± 538.18, 5638.89 ± 1001.18, and 3405.56 ± 638.57 per kg, respectively. ANOVA resulted in highly significant association between MPs and sampling sites (p = .001*). Post hoc Tukey's test revealed prominent link between commercialized and open pan salts based on the amount of MPs (p = .001*). The most prevalent colors were purple (28%) and blue (27%). The most frequent shapes were fibrous (79%) and fragmented (19.9%) MPs. The smallest MP was detected in commercial salt (1.55 μm), nearly identical and closer to the size of nanoplastics.

Medicinal plants constitute an important natural wealth of a country. They play a significant role in providing primary health care services to rural people. They serve as therapeutic agents as well as important raw materials for the manufacture of traditional and modern medicine. Lemna minor, the common duckweed is an aquatic freshwater aquatic plant of the genus Lemna. They belong to the family of Lemnaceae, which is monophyletic to the Araceae family. The study assesses In-vivo Neuropharmacological and Anti Nutrient Study of methanolic extract of Lemna minor. The plants were collected from Chandpur were extracted in methanol solvents using soxhlet apparatus. Chemical tests to identify different anti nutrients, total phenolic and flavonids were carried out using specific reagents. Several test such as open field test, hole cross test, hole board test and phenobarbital induced sleeping time test are performed to check possible neurological activity.The study of anti-nutrient properties showed a very high amount of tannin (5.625gm/kg) but a low amount of phytic acid (0.03gm/kg) & alkaloids (0.526gm/kg) comparison with standard value. Total phenolic (19.22 GAE/g dry weight) and flavonoids (7.68 QE/g dry weight) content determine that Lemna minor have a very good amount of phenolic and flavanoids content and which may act as good anti-oxidant. In the study of in-vivo neurological activity the efficacy of Lemna minorextract was compared with standard anxiolytic drug diazepam (1 mg/kg b.w.) showed limited sedation as well as anxiolytic properties in mice. The present study of in-vivo & anti-nutrient is biological evaluation of this plant forms a primary platform for further phytochemical, anti-nutrient & pharmacological studies.