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1.
PLoS One ; 18(10): e0291760, 2023.
Article in English | MEDLINE | ID: mdl-37788245

ABSTRACT

Microplastics (MPs) contaminate every conceivable terrestrial and aquatic environment including high peaks and deep marine trenches. Agricultural lands alone are expected to receive plastic up to 23 times more than ocean basins. In this study, soil samples were collected from peri-urban agricultural lands of Lahore on four sides including Kala Shah Kaku (KSK), Punjab University (PU), Dera Gujran (DG), and Sagian (SG). National Oceanic and Atmospheric Administration (NOAA) protocol was used for MPs extraction and analysis. Extracted MPs were analyzed under microscope at 40X magnification and their composition was analyzed using Fourier Transform Infrared (FTIR) spectroscopy. A considerable concentration of MPs was recorded at all sites. The highest contamination was found at SG with 876 ±194 MPs/kg of soil, and the lowest contamination was recorded at PU with 672 ±235 MPs/kg of soil. However, these differences among the sites were not statistically significant (p = 0.29). The overall predominant shape of MPs was fibers (613±71, 79.73%) followed by sheets (125±55, 16.28%), fragments (30±5, 3.9%) and foam particles (1±2, .09%). The differences in the distribution of MPs in various types were statistically significant (p = 0), while differences between sites were insignificant (p = 0.13). About 95% of MPs were less than 2 mm and 85% were less than 1 mm size. The distribution of MPs in various sizes (p = 0) and differences of this distribution between sites (p = 0.037) were both statistically significant. A good diversity of nine colored MPs was recorded, however majority of the MPs were transparent (89.57%). Six polymer including Polyethylene (PE), Polyethylene terephthalate (PET), Polypropylene (PP), Polystyrene (PS), Polycarbonate (PC), and Polyvinyl Chloride (PVC) were identified by FTIR. The current levels of MPs pollution are higher than in many other parts of the world. Composition of MPs (types, colors, sizes, and polymer types) indicates the diversity of their sources and their possible implications on agricultural ecosystem.


Subject(s)
Microplastics , Water Pollutants, Chemical , Humans , Pakistan , Plastics , Ecosystem , Soil , Polyethylene , Polymers , Environmental Monitoring
2.
J Pak Med Assoc ; 59(11): 798-801, 2009 Nov.
Article in English | MEDLINE | ID: mdl-20361687

ABSTRACT

OBJECTIVES: To determine the baseline level of awareness amongst a rural community about Diabetes Mellitus (irrespective of type 1 or type 2), its risk factors and complications. METHODS: This was a cross-sectional survey conducted at the community of Tarlai, Islamabad, Pakistan, in January of 2008. A structured questionnaire was used and 300 adults (age > or = 18 years) were assessed on their knowledge regarding awareness of Diabetes Mellitus, its risk factors and complications. All data collected was entered into SPSS version 10.0. The data was re-validated and analyzed. RESULTS: Out of the three hundred adults subjected to the survey, only 129 (43%) adults had any awareness of Diabetes Mellitus. Adults with no regular, scheduled exercise were 221 (73.7%) and 256 (85.3%) did not have healthy eating habits. Awareness of risk factors was present in 42 (14%) while awareness of the complications associated with the disease was 65 (22%). Adults which reported as never going for regular checkups to any clinic or hospital were 232 (77%). Family history of diabetes mellitus was statistically significantly associated with awareness about diabetes mellitus (65% vs 32%, p < 0.001), people who were in contact regularly with health care providers were more aware about diabetes and the associated risk factors than those who were not (71% vs 35%, p < 0.001). Sex was not associated (p = 0.28) with awareness about diabetes mellitus, nor was the educational status (p = 0.46). CONCLUSIONS: Majority of adults were unaware of Diabetes Mellitus itself and associated risk factors. Raising public awareness of the disease through outreach programmes and mass media should be planned and implemented.


Subject(s)
Awareness , Diabetes Mellitus/psychology , Adult , Chi-Square Distribution , Cross-Sectional Studies , Diabetes Complications/epidemiology , Diabetes Complications/psychology , Diabetes Mellitus/epidemiology , Female , Humans , Male , Pakistan/epidemiology , Risk Factors , Rural Population , Surveys and Questionnaires
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