Background: Tofu derived from processed soybeans is popular with the public, but tofu production has an unfavourable effect. After all, it produces liquid waste that causes quite high pollution because it contains quite high organic components. The study aimed to reduce the content of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and Ammonia in the liquid waste of a tofu factory. The scope of this research is limited to reducing the content of BOD, COD, and NH3 (Ammonia) with an anaerobic-aerobic biofilm aeration system. Materials and Methods: This research was conducted at the Sanitation Study Program Campus, health polytechnic, Ministry of Health, Jambi from March to August 2020. Sample examination was carried out at the Regional Health Laboratory of Jambi Province. This is an experimental study with a pre-post test only design and one group post-test design. The population in this study is the tofu industry, and the sample in this study is partly water from tofu waste. Results: The results showed a decrease in BOD, COD and Ammonia after passing through a tofu waste treatment machine using anaerobic and aerobic biofilms with BOD values of 64.6%, COD of 49.6% and Ammonia of 79.8%. The statistical test results showed that the p-value was 0.0001 for the decrease in BOD, the p-value was 0.0001 for COD, and the p-value for ammonia was 0.0001. A significant decrease in DOD, COD and Ammonia after passing through the waste treatment equipment with Anaerobic and Aerobic Biophiles. Conclusion: This tool can be used by adding several parts and treatments such as filtering, settling basins, and adding other chemical substances. On the surface of the bio ball used, it was found that the growth of biofilm was found and to increase the ability of the equipment, initial treatment was needed, such as filtration and sedimentation of waste, reducing acidity with the help of quicklime.

Introduction: Lung cancer has emerged as a global problem with the highest recorded mortalities amongst all types of cancer. There are multiple etiological factors associated with lung cancer such as smoking, environmental pollution, occupational exposure to carcinogens etc. Increase in lung cancer incidence among non-smokers is generally attributed to environmental pollution and occupational exposure. Also, an increase in the percentage of patients with targetable oncogenic drivers has been observed. Methods: Here, we evaluated the effect of domestic conditions on epidemiology, baseline demographic and molecular characterization of lung cancer in India. For this data about domestic conditions such as housing type, kitchen type, fuel type, ventilation conditions and occupation was available from April 2018 to December 2019. Results: Clinicopathological parameters of 1689 newly diagnosed lung cancer patients over the period of 3 years were recorded. Median age was 60.0years and 74.0% patients were smokers. The analysis data set for domestic conditions included 1018 patients. Working environment (indoor versus outdoor environment) had an association with lung cancer histology. 64.5% of lung cancer cases were found in people working in open outdoor environment (construction site workers, labourer, Farmers etc). People working in a closed office environment and housewives had higher frequency of adenocarcinoma and activating EGFR mutation and ALK rearrangement. Conclusion: Domestic conditions and working environment not only selectively impact the lung cancer histology frequency but may also affect the frequency of oncogenic mutations and gene rearrangement.

Introduction: Exposure to vibration and noise has been identified to potentially contribute to work-related fatigue, consequently causing a range of adverse effects on job performance.Method: In this study, a sample of 62 city bus drivers underwent examination to evaluate noise levels through the utilization of a TES dosimeter. Additionally, vibration measurements were conducted using an SV 106 vibration meter. Furthermore, the level of occupational fatigue was determined through the utilization of a Swedish fatigue questionnaire. Results: In the conducted study, it was observed that bus drivers were subjected to an average exposure level of 82.18 dB and 0.99 m/s2 for noise and whole-body vibration, respectively, throughout their work shifts. Additionally, their average job fatigue score was measured to be 26.21 out of a total of 200. To comprehensively evaluate the influence of various factors on (WRF), both single-variable and multi-variable analyses were conducted. The result of the univariate tests exhibited a notable association between job fatigue and the Lon life of the vehicle, the type of car seat (spring or inflatable), as well as the level of exposure to vibration and job satisfaction. Moreover, when considering the influencing factors concurrently in the multivariate test, a significant correlation between occupational fatigue and exposure to vibration, as well as the type of chair, was established. Conclusion: Improving the quality of buses by implementing modernized features that minimize vibrations and reduce noise levels can greatly contribute to mitigating fatigue among urban bus drivers.

Background: This study aimed to assess the contamination of Polychlorinated Biphenyls (PCBs) in indoor dust among university students in Ilorin, Nigeria. Methods: One hundred (100) indoor dust samples were collected from different locations within university hostels. Two Universities in Ilorin were sampled for the study; the Univerisity of Ilorin and Al-Hikmah University. Gas chromatography-mass spectroscopy (GC-MS) was employed to analyze and identify fourteen PCB congeners. Results: The results revealed that university students were exposed to low levels of PCB contamination in indoor dust. The concentrations of individual PCB congeners ranged from 4.993ng/g to 37.701ng/g. Notably, PCB-52 and PCB-118 were the predominant congeners, with mean concentrations of 37.701ng/g and 30.928ng/g. Conversely, PCB-44 exhibited the lowest occurrence, with a mean concentration of 4.993ng/g. The study found positive correlations among specific PCB congeners, suggesting familiar sources and environmental behaviors. However, no significant correlations were found between residential characteristics and measured PCB levels. Conclusion: The results emphasize the need for further research to minimize PCB contamination in indoor environments and protect human health. It is recommended that PCB levels be monitored in indoor environments and enforce strong regulations to control PCB production, use, and disposal.

Introduction: Today, burnout has emerged as a significant concern affecting the well-being of employees within various groups and organizations. Numerous factors, including vibrations and noise, have been identified as impacting job burnout. City bus drivers are individuals who are frequently exposed to a wide range of stressors and pressures. Consequently, this study aims to evaluate the influence of noise and vibration exposure on job burnout specifically city bus drivers in Neyshabur. Material and method: In the conducted study, a total of 62 bus drivers from Neishabur city participated. To accurately measure sound levels, a TES dosimeter was employed, while vibration levels were assessed using an SV 106 vibration meter. As for job burnout, the researchers utilized the well-established Maslach questionnaire. Result: The present study reveals notable findings regarding the frequency levels of various dimensions among bus drivers. Particularly, the dimension of emotional exhaustion and depersonalization exhibited the highest percentage at a medium level. Moreover, all bus drivers scored high on the dimensions of lack of success and lack of efficiency. the dimension of emotional exhaustion and depersonalization was found to have the highest frequency percentage, particularly at a medium level. Results from the correlation test indicated a significant relationship between emotional fatigue and various factors, such as the number of working hours per week, amount of overtime per week, number of services, and exposure to vibrations. Additionally, a significant relationship was observed between the depersonalization dimension and the number of services, noise exposure, as well as lack of success and the number of services. Furthermore, a significant relationship between the lack of success dimension and the number of services and exposure to vibrations was identified. Conclusion: Factors such as the quantity of working hours, overtime, the number of services within the driving profession, as well as exposure to high levels of noise and vibration, have been identified as influential factors on job burnout. It is plausible to mitigate work burnout in driving occupations by implementing strategies such as reducing working hours, utilizing contemporary and low-vibration vehicles, and rotating work shifts between drivers in bustling and clamorous locales with more serene urban environments.

The article deals with to the study of the microflora of national dairy and lactic acid products in the Aral Sea region. The aim of the study is to separate and identify microorganism characteristic of national dairy products. Microbiological and biochemical research methods were used in the course of the study. As a result of research, it was found that the microflora of dairy products is represented by mesophilic cocci of the genus Leuconostoc and Lactococcus, thermophilic streptococci – Streptococcus termophilus and enterococci - Enterococcus faecium.

This writing will focus on the impact on the impact of oil and gas development on the landscape, surface water and groundwater of the Niger Delta – while also assessing the various means of remediation in use. Geologically, the Niger Delta petroleum systems consist of Lower Cretaceous , Upper Cretaceous–lower Paleocene and Tertiary. When Nigeria became an independent nation on 1 October 1960, Shell–BP began to relinquish its acreage and its exploration licenses were converted into prospecting licenses that allowed development and production. The Federal Government of Nigeria started its Department of Petroleum Resources Inspectorate in 1970 and Nigeria joined the Organization of the Petroleum Exporting Countries in 1971. – and in order to take control of the country’s petroleum industry, Nigeria nationalized BP’s holding completely in 1979, and Shell–BP became Shell Petroleum Development Company of Nigeria. Oil spillages routinely occur in the Niger Delta. The official figures of SPDC show that between 1976 and 2001, 6,187 incidents in which 3 million barrels were spilled. The Niger Delta Environmental Survey An impact assessment of the 1983 Oshika oil spill. Spills of crude oil in Niger Delta farmlands have been reported since 1971. In general, toxicity depends on nature and type of crude oil , level of oil contamination, type of environment and degree of selective of individual organisms. Controlled burning effectively reduce the amount of oil in water, if done properly but it must be done in low wind and can cause air pollution. A principal target for emissions reduction is flaring and venting which causes most of the air pollution. Saltwater tanks can be often susceptible to lightning strikes due to build up in static electricity, with the spilled oil spreading to surrounding lands, waterways. This requires a secondary containment of the tanks that makes it easier to clean up the inevitable spill. In cases of expected major storms or flooding events, crude oil can be removed from tank batteries while refilling the tanks with saltwater to prevent them tipping over during the flooding event.

are important, and used to be well known, human and animal pathogens.A novel coronavirus was identified at the end of 2019, as the cause of a number of pneumonia cases in city in the Hubei Province of China, Wuhan. Appeared to be a highly contagious anthroponotic infection. It rapidly caused an epidemic throughout China, hereafter an increasing number of cases in other countries throughout the world. All age groups, including children, are susceptible to the virus, but this age group is more likely to be asymptomatic. However, children may play a great epidemiological role in the spread of the virus with the absence of clinical signs of respiratory disease. Elderly people are the most severe carriers of the virus, as well as people with concomitant diseases. In February 2020, the World Health Organization (WHO) designated the disease COVID-19, which stands for coronavirus disease 2019 [4]. The virus that causes COVID-19 is designated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); before, it was referred to as 2019-nCoV. We conducted meta-analysis of currently available data to summarize knowledge about the current epidemic in Russia, the dynamic of spread of the infection and management of the disease. Quarantine measures, which were carried out rather quickly, avoided the rapid spread of infection and thus contributed to a gradual increase in the load on medical facilities. As a result, most hospitals had time to prepare for an increased number of patients with coronavirus infection.

Introduction: Using Hypochlorite Sodium in producing bleaches in order to disinfect and shine surfaces has been an ordinary method since 200 years ago. 10-15% solutions with PH=13 have been used for industrial purposes and 5% solutions with PH=11 have been used for domestic use. AIHA (American Industrial Hygienists Association) has announced the maximum standard exposure to this substance equal to 2mg/m3 in a period of 15 minutes. It should be noted that, based on material safety data sheet and NFPA rating explanation guide, the mentioned substance is mildly unstable (code 1), carries oxidation hazard (ox), and serious respiratory hazard (code 3).
 
 Methods: This survey has been conducted with statistical society of 39, average age of 29.82±3.66 and work experience of 2.46±6.02 who were exposed to Hypochlorite Sodium in 2019. The reference of analyzing the data include medical check-up inventory, spirometry FEV1, FVC, and FEV1/FVC relativity, using SPSS ver16, and T-test.
 
 Results: The statistical society (39 participants) had a normal distribution, with a very pleasant correlation amounts in (FEV1/FVC, FVC, FEV1) considering sig=0.13, andless possibility than (P≤0.05). therefore, the amounts before and after FEV1, and FEV1/FVC, had a meaningful difference statistically, however, taking the amount of sig=0.68 into account which was P≤0.05, no meaningful difference was observed for FVC amounts before and after respiratory exposure to Hypochlorite Sodium.
 
 Conclusion: Considering the reduction in amount of FEV1, and FEV1/FVC among the workers of the manufacturing site who were exposed to Hypochlorite Sodium, they are likely to have pulmonary obstruction, and therefore they are required to be changed in position and location of their jobs, and also appropriate ventilation system must be installed in the location of Hypochlorite Sodium evaporations. Keeping in mind the instability and corrosiveness of Hypochlorite Sodium, all employees had better use respiratory masks (preferably FFP3 in case of dusty materials), proper face shields, anti-acid gloves, anti-acid overalls, and chemical resistant boots.
 
 Keywords: Respiratory exposure assessment, Occupational Asthma, Hypochlorite Sodium, Bleach, FEV1, FVC, FEV1/FVC, CANCER.

Introduction: The breast cancer is the first common cancer among Iranian women, accounting for 24.4% of all cancers. With the improvement in disease‑free survival with advanced treatment modalities, question of quality of life (QOL) arises. The aim of the present review was assessment QOL of Iranian women with cancer breast and affecting factors.Methods: This study is a review article in which articles about Breast cancer were searched in databases such as Scopus, SID, Magiran, Google Scholar, Pubmed, IranMedex, ScienceDirec from key words of Cancer Brest, Quality of Life, Affecting Factor and Iran were used to search.Results: Twenty-eight studies from 2008 to 2018 on the quality of life of 2226 patients with breast cancer in Iran were conducted. In these studies, five different questionnaires QLQ-C30, SF-36, Ferrans & Power, QLQ-BR23, WHO-QOL 26 to check the quality of life patients were used. Conclusion: Breast cancer affects the quality of life of the patients and reduces it. Psychological and financial support and exercise and health for women experiencing breast cancer diagnosis can have been a positive impact on the disease and the patient’s compliance with the complications of the disease and the treatments.