Background. Cement dust inhalation is associated with deleterious health effects. The impact of cement dust exposure on the peak expiratory flow rate (PEFR), liver function, and some serum elements in workers and residents near cement factory were assessed. Methods. Two hundred and ten subjects (50 workers, 60 residents, and 100 controls) aged 18–60 years were studied. PEFR, liver function {aspartate and alanine transaminases (AST and ALT) and total and conjugated bilirubin (TB and CB)}, and serum elements {lead (Pb), copper (Cu), manganese (Mn), iron (Fe), cadmium (Cd), selenium (Se), chromium (Cr), zinc (Zn), and arsenic (As)} were determined using peak flow meter, colorimetry, and atomic absorption spectrometry, respectively. Data were analysed using ANOVA and correlation at p = 0.05. Results. The ALT, TB, CB, Pb, As, Cd, Cr, Se, Mn, and Cu were significantly higher and PEFR, Fe, and Zn lower in workers and residents compared to controls (p < 0.05). Higher levels of ALT, AST, and Fe and lower levels of Pb, Cd, Cr, Se, Mn, and Cu were seen in cement workers compared to residents (p < 0.05). Negative correlation was observed between duration of exposure and PEFR (r = −0.416, p = 0.016) in cement workers. Conclusions. Cement dust inhalation may be associated with alterations in serum elements levels and lung and liver functions while long term exposure lowers peak expiratory flow rate.

Malnutrition remains a major health problem in the third world countries, and is a key factor to the high death rate among children below five years old. This study aimed to determine serum vitamin A, mid-upper arm circumference (MUAC), and albumin levels of malnourished children and their well-fed counterparts. A total of one hundred (100) children comprising of fifty (50) malnourished children under the age of five years and fifty (50) well-fed age-matched children were recruited into this study. Mid upper arm circumference (MUAC) measurement was used to categorize the children into malnourished and the well-fed groups. The malnourished were further classified into kwashiorkor and marasmic cohorts. Serum vitamin A and albumin levels were determined by colorimetric methods. Data were analyzed using SPSS version 20.0 statistical package, differences between and variations among groups were determined by Student's t-test and ANOVA respectively while the association between variables by Pearson's correlation. Differences were considered statistically significant at p≤0.05. Serum vitamin A, MUAC and albumin levels of the well-fed group were significantly higher (p<0.05) than those of the malnourished. Comparing the well-fed, the kwashiorkor and the marasmic groups, the mean serum vitamin A, MUAC and albumin of the well-fed were significantly higher (p=0.001) than those of the kwashiorkor and marasmic groups. Mean albumin level of the kwashiorkor was significantly lower (p<0.05) than that of marasmic group. Mean MUAC of the kwashiorkor subjects was significantly higher (p<0.05) than that of the marasmic subjects. Serum vitamin A was not significantly different (p=0.724) between the kwashiorkor and the marasmic groups. In the marasmic subjects mean serum vitamin A correlates negatively with albumin (r= -0.517, p=0.011). In the kwashiorkor subjects, serum vitamin A correlates negatively with albumin (r=-0.080, p=0.690). In the well-fed children, serum vitamin A correlates positively with albumin (r=0.340, p=0.016). Conclusion: malnourished children with kwashiorkor and marasmus have lower albumin, serum vitamin A and MUAC compared with the well-fed children.