Psychosocial issues of hearing impaired school children: a psychometric approach.

OBJECTIVE: To develop a valid and reliable scale for measuring psychosocial issues of hearing-impaired school children. METHODS: The cross-sectional study with four stage model of scale development was conducted at Multan, Muzafargarh, and Dera Ghazi Khan Pakistan from August 2018 to January 2019. The four stages were item generation, expert validation, conversion of scale into sign language and psychometric study. The sample comprised hearing-impaired school children aged 18-23 years who were studying Special Education schools in Multan, Pakistan. RESULTS: Of the 230 subjects, there were 110(47.8%) boys and 120(52.2%) girls. The overall mean age was 19.90±2.46 years. Exploratory factor analysis with varimax rotation revealed 26 items in 'Depressive Affect', 'Social Isolation' and 'Feeling of Anger' sub-scales with high internal consistency (r=0.85) and validity (r=-0.32). CONCLUSIONS: The internalised nature of psychosocial issues of children with hearing impairment needs timely identification and intervention so that silent suffering can be prevented to improve psychosocial functioning of such children.

Fluoride estimation and its correlation with other physicochemical parameters in drinking water of some areas of Balochistan, Pakistan.

The fluoride level in drinking water is an important parameter and has to be controlled in order to prevent dental and skeletal fluorosis. The objective of this study is to assess fluoride content and other water quality parameters in the samples taken from open wells, tube wells, and karezes of Mastung, Mangochar, and Pringabad areas of Balochistan province. A total number of 96 drinking water samples out of 150 were found unfit for human consumption. Area-wise analysis show that the samples from 39 sites from Mastung, 12 from Mangochar, and 13 from Pringabad were found in the risk of dental fluorosis of mild to severe nature. However, 12 sampling sites from Mastung, 8 from Mangochar, and 2 from Pringabad were identified as the risks of mottling and skeletal fluorosis or other bone abnormalities. The highest concentration of F(-) has been observed as 14 mg L(-1) in Mastung. Correlation analysis show that fluoride solubility in drinking water is pH dependent; and the salts of Ca(2+), Na(+), K(+), Cl(-), and SO4(2-) contribute to attain the favorable pH for dissolution of fluoride compounds in drinking water. Principal component analysis shows that the geochemical composition of the rocks is only responsible for groundwater contamination. On the basis of the results, defloridation of the identified sampling sites and continuous monitoring of drinking water at regular basis is recommended at government level to avoid further fluorosis risks.

Assessment of heavy metal toxicants in the roadside soil along the N-5, National Highway, Pakistan.

The assessment of the toxicants in roadside soil on regular basis has become extremely essential with the increase in awareness for the metal toxicity in the environment. The present study investigates the presence of toxic metals along National Highway (N-5), Pakistan. Averages of about 1.3 million per month of automobile vehicles ply on this route. Lead (Pb), zinc (Zn), copper (Cu), nickel (Ni), cadmium (Cd), cobalt (Co), manganese (Mn), mercury (Hg), and iron (Fe) were analyzed by atomic absorption spectrophotometry in roadside soil at the nine selected locations along the highway. Strong Pearson correlations (α = 0.05) were found between Pb and Zn (r(2) = 0.887), Fe and Mn (r(2) = 0.880), Hg and Cd (0.864), Cu and Zn (0.838), and Cu and Pb (0.814). The correlation between the elemental compositions of the main automobile components revealed vehicular traffic as the main non-point source of roadside soil pollution. Extremely high level of mercury, 144.05 mg kg(-1), was found at S5. It was revealed that the unregulated incineration and dumping sites of hazardous waste material along N-5 were also responsible for these contaminations. Multivariate analysis on the obtained data also disclosed the same interpretation. Cluster analysis of the data grouped Pb, Zn, and Cu at 85.23% similarity, whereas, Cd, Hg, and Ni were grouped at 78.75% similarity basis. The findings need swift action against the root cause of soil pollution.