The study population consisted of 237 children aged 5-6 years in Jenin city. The arterial blood pressure (systolic and diastolic), heart pulse rate, oxygen saturation in blood and tympanic temperature were measured before and after exposure to light intensity levels for four hours continuously. The light intensity levels were (0 - 60), (400 - 600) and (1320 - 1500) lux. The background light was (400 - 600) lux for all selected schools, which is considered to be normal or accepted light intensity level. Strong positive correlation (Pearson Correlation Coefficient) was found to be R > 0.659 between light intensity levels and all of the arterial blood pressure (systolic and diastolic), heart pulse rate, blood oxygen saturation and tympanic temperature in the selected school. In addition, P-value between the dependent and independent variables was found to be zero. Finally, the study concludes that there is an effect of the light intensity levels on arterial blood pressure (systolic and diastolic), heart pulse rate, oxygen saturation in blood and tympanic temperature of schools’ children.
This study reports the association of noise pollution level with blood pressure (systolic and diastolic), heart rate and hearing threshold in school children. The schools were selected randomly as to present quiet [Seida village, 68.2-71.1 dB(A)], noisy [Nablus city, 76.5-79.4 dB(A)] and very noisy, [Tulkarem refugees camp, 82.4-85.9 dB(A)] localities. Strong positive correlation (Pearson Correlation Coefficient) were found between noise pollution level and systolic and diastolic blood pressure, heart rate and hearing threshold at different frequencies. The mean systolic and diastolic blood pressure for the two sexes are correlated positively with the noise pollution level (R = 0.521 and 0.440, respectively). The hearing threshold levels of different frequencies correlated positively with the noise pollution level (R = 0.114 to 0.267; where p < 0.05).
This research is studying noise pollution effects on the healthcare professionals in Nablus city hospitals. The arterial systolic and diastolic blood pressure (SBP and DBP) and heart pulse rate were measured for 95 workers (55 males and 40 females) in the selected hospitals of Nablus city. The ages of the sample workers were ranging from 20 to 73 year. The Sound Pressure Level (SPL) values were first measured in all studied hospitals and were found to be high compared to the recommended value, 45.0 dB(A) in the daytime. The difference between means of SBP, DBP and HPR before and after work are 6.335 (mmHg) of SBP, 5.108 (mmHg) of DBP and 5.305 of HPR (beat\min), respectively. In this study SBP, DBP and HPR are correlated positively (p-value < 0.050) with the occupational noise levels in all studied hospitals. In addition, the Pearson coefficient correlation (R) value of SBP, DBP and HPR in all selected hospitals are correlated positively. Moreover, significant correlation was found between mean values of SBP, DBP and HPR with the duration of employment and age.
This research is studying noise pollution effects on the healthcare professionals in Nablus city hospitals. The arterial systolic and diastolic blood pressure (SBP and DBP) and heart pulse rate were measured for 95 workers (55 males and 40 females) in the selected hospitals of Nablus city. The ages of the sample workers were ranging from 20 to 73 year. The Sound Pressure Level (SPL) values were first measured in all studied hospitals and were found to be high compared to the recommended value, 45.0 dB(A) in the daytime. The difference between means of SBP, DBP and HPR before and after work are 6.335 (mmHg) of SBP, 5.108 (mmHg) of DBP and 5.305 of HPR (beat\min), respectively. In this study SBP, DBP and HPR are correlated positively (p-value < 0.050) with the occupational noise levels in all studied hospitals. In addition, the Pearson coefficient correlation (R) value of SBP, DBP and HPR in all selected hospitals are correlated positively. Moreover, significant correlation was found between mean values of SBP, DBP and HPR with the duration of employment and age.
This study reports the association of noise pollution level with blood pressure (systolic and diastolic), heart rate and hearing threshold in schoolchildren. The schools were selected randomly as to present quiet [Seida village, 68.2-71.1dB(A)], noisy [Nablus city, 76.5-79.4dB(A)]and very noisy,[Tulkarem refugees camp, 82.4-85.9dB(A)]localities. Strong positive correlation (Pearson Correlation Coefficient) were found between noise Pollution level and systolic and diastolic blood pressure, heart rate and hearing threshold at different frequencies. The mean systolic and diastolic blood pressure for the two sexes are correlated positively with the noise pollution level (R = 0.521 and 0.440, respectively). The hearing threshold levels of different frequencies correlated positively with the noise pollution level ( R= 0.114to 0.267; where p < 0.05).