Figure 1 - available via license: CC BY-NC
Content may be subject to copyright.
Source publication
p>Assessment of occupational noise exposure of flour mill workers in Chandrapur city of central India was carried out during November 2015-January 2016. Total 62 flour mills were selected for this study comprising one, two and three grinding machines operating in the shop floor. The sound level meter was used to measure sound level at 50 cm and 3 m...
Context in source publication
Citations
... In a study conducted by Narasimhan et al., 2022, it was found that 107 workers in rice and flour factories in the state of Tamil Nadu, South India, were exposed to high levels of noise due to machinery in the workplace and experienced hearing loss [12]. In another study conducted by Nimgde et al., 2018 to evaluate occupational noise exposure of 65 flour mill workers in the city of Chandrapur, India, it was found that approximately 70% of the workers had hearing problems, and around 23% experienced constant headaches at work [13]. In a study conducted by Mohammadizadeh et al., 2015 on noise exposure for workers in various sections of a flour factory in Lamerd, Iran, values above the legal limits were detected, and it was reported that there was a relationship between the workers' age and the occurrence of hearing loss [14]. ...
According to the Ministery of Labor and Social Security; 10% of occupational diseases are defined as noise-induced hearing loss. Flour factories are workplaces where physical risk factors such as noise are experienced due to their processes. Necessary measures should be taken to reduce or eliminate negative consequences for human health. Noise exposure of workers in two flour mills to be measured in pneumatic, sieve, purifier and roller units selected for this purpose. These measurement studies carried out according to the TS EN ISO 9612 standard; task-based metrics. As a result of these measurements, the daily noise exposure value in all units where measurements were made was above the exposure limit value in the legal legislation. These results showed that noise exposure poses a risk for the workers in the selected flour- mills and precautions should be taken for these workers.
... Continuous assessment of pollution in Egyptian lakes is necessary to evaluate the status of lakes [1][2][3][4][5][6][7][8][9][10]. In aquatic ecosystems, sediments receive large amounts of autochthonous organic matter (OM) composed of algae, plants and other animals originating from the aquatic environment itself; and allochthonous composed of terrestrial material. ...
... Thirteen surface water samples in duplicate were collected in Autumn 2019 from 13 sampling stations. Two stations (1 & 2) are located at the fishery basin; four stations (3)(4)(5)(6) are located at the main basin); one station (7) is located at the north-west basin; three stations (8)(9)(10) are located at the south-west basin, in addition to three drains, namely El-Qalaa drain (11); El-Nubaria drain (12) and El-Umoum drain (13). Samples were taken by immersing the bottles below the water surface and lifting up. ...
... The TOC and TN are presented in Table 2 98 with an average value of 155.9 mg g −1 for Mg. Boron concentrations showed higher contents at all stations except for station (9) than that reported for marine sediments (0.5 mg g −1 ) [97]. This reflects the impact of drainage water discharged into the lake from El-Umoum drain, El-Qalaa drain and El-Noubaria Canal on the levels of boron in Table 3. ...
... Continuous assessment of pollution in Egyptian lakes is necessary to evaluate the status of lakes [1][2][3][4][5][6][7][8][9][10]. In aquatic ecosystems, sediments receive large amounts of autochthonous organic matter (OM) composed of algae, plants and other animals originating from the aquatic environment itself; and allochthonous composed of terrestrial material. ...
... Thirteen surface water samples in duplicate were collected in Autumn 2019 from 13 sampling stations. Two stations (1 & 2) are located at the fishery basin; four stations (3)(4)(5)(6) are located at the main basin); one station (7) is located at the north-west basin; three stations (8)(9)(10) are located at the south-west basin, in addition to three drains, namely El-Qalaa drain (11); El-Nubaria drain (12) and El-Umoum drain (13). Samples were taken by immersing the bottles below the water surface and lifting up. ...
... The TOC and TN are presented in Table 2 98 with an average value of 155.9 mg g −1 for Mg. Boron concentrations showed higher contents at all stations except for station (9) than that reported for marine sediments (0.5 mg g −1 ) [97]. This reflects the impact of drainage water discharged into the lake from El-Umoum drain, El-Qalaa drain and El-Noubaria Canal on the levels of boron in Table 3. ...
Although great efforts have been devoted in assessing the ecological
risks in aquatic environments, a lack of information is still present. An
integrative approach was proposed concerning the mobility of carbohydrates,
proteins and phenol among water, sediments and macrophytes
in relation to the physical, chemical and geochemical
parameters of Lake Mariout. Total carbohydrates, proteins and phenol
showed averages of 6.80 mg L−1, 116.90 mg L−1 and 19.46 μg L−1;
89.82 mg g−1; 29.21 mg g−1 and 1.80 μgg−1; and 60.80 mg g−1,
15.27 mg g−1 and 9.29 mg g−1 in water, sediments and macrophytes,
respectively. Protein/carbohydrate ratios in sedimentswere used as the
trophic indicator. This study cleared out that all stations had ratios (<1)
refereeing to aged organic matter. Station 6 indicated fresh organic
matter. Moreover, the ratio of total organic carbon to total nitrogen
(TOC/TN) suggested a primarily marine origin at eleven stations (<10)
and a mixture of terrestrial input and marine materials (>10) at stations
1 and 7 located in the North-West Basin. Relatively high phenol concentrations
of 54.5, 38.25 and 45.37 μgL−1 in water were measured at
stations (3 & 5) located in the Main Basin, and station 11 located at El-
Qalaa drain, respectively. The partition coefficient of phenol (Kd) varied
from 0.053 to 0.199 (<1 Lg−1) revealing high mobility and an underground
disposal facility. The low biodiversity of phytoplankton (38
spp.), seagrasses (5 spp.) and seaweed (5 spp.) inside the lake reflected
the impact of wastewater discharged. Two phytoplankton blooms
were observed at stations 3 and 7. According to the Diversity Index of
Boyd, all Mariout stations (<4) are moderately polluted. Multivariate
analyses were adopted to describe the lake chemistry. This study gives
a conceptual framework helps decision-makers to express the problem
of sustainability at Lake Mariout.
... Continuous assessment of pollution in Egyptian lakes is necessary to evaluate the status of lakes [1][2][3][4][5][6][7][8][9][10]. In aquatic ecosystems, sediments receive large amounts of autochthonous organic matter (OM) composed of algae, plants and other animals originating from the aquatic environment itself; and allochthonous composed of terrestrial material. ...
... Thirteen surface water samples in duplicate were collected in Autumn 2019 from 13 sampling stations. Two stations (1 & 2) are located at the fishery basin; four stations (3)(4)(5)(6) are located at the main basin); one station (7) is located at the north-west basin; three stations (8)(9)(10) are located at the south-west basin, in addition to three drains, namely El-Qalaa drain (11); El-Nubaria drain (12) and El-Umoum drain (13). Samples were taken by immersing the bottles below the water surface and lifting up. ...
... The TOC and TN are presented in Table 2 98 with an average value of 155.9 mg g −1 for Mg. Boron concentrations showed higher contents at all stations except for station (9) than that reported for marine sediments (0.5 mg g −1 ) [97]. This reflects the impact of drainage water discharged into the lake from El-Umoum drain, El-Qalaa drain and El-Noubaria Canal on the levels of boron in Table 3. ...
