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Benzene can be enzymatically increasing the formation of Reactive OxygenSpecies (ROS) that affect the cells and cause oxidative damage. Malondialdehyde(MDA) is the end product of lipid peroxidation and is one indicator of oxidativestress caused by free radicals. S-phenylmercapturic acid (SPMA) be the parameterof benzene exposure in humans. This study aimed to analyze the associationSPMA against MDA in shoe workers. The research method uses design analyticcross-sectional study. Selection of the sample using one level cluster to informalindustry. The samples in this study are 64 workers. The results showed thatmedian levels concentration of SPMA is 10.24 mg/g creatinine or 20 respondents(31.2%) had a concentration of SPMA urine above the value of biologicalexposure index (BEI) (> 25 mg / g creatinine), and median levels of serum MDAworkers are 6.38 μmol/L. Based on statistical test, we know that have a significantassociation for concentration of SPMA to increase MDA after controlling by age,length of employment, smoking status, alcohol habits, exercise habits and habit ofeating vegetables and fruits (R2: 0133, p-value: 0.039). This study shows thatexposure to benzene giving adverse effects on oxidative stress in addition toworkers by age workers.Keywords: Benzene; Small Scale Industry; Malondialdehyde; Oxidative Stress;S-phenylmercapturic acid;
ABSTRAK Nama : Bayu Rizki Sanjaya Program Studi : Magister Ilmu Kesehatan Masyarakat Judul : Asosiasi Pajanan Benzene Terhadap Kadar Hemoglobin (Studi Pada Pekerja Laki-Laki Di Industri Sepatu Informal Cibaduyut, Jawa Barat) xvi + 85 halaman, 16 tabel, 9 gambar Benzene merupakan senyawa yang berbahaya bagi kesehatan. Dampak nonkarsinogenik yang diakibatkan diantaranya anemia dan pensitopenia. Pada pajanan benzene ditingkat rendah, menunjukkan adanya perbedaan dampak hematologi. Kadar hemoglobin merupakan salah satu parameter awal yang digunakan untuk mengetahui dampak hematologi. Penelitian ini bertujuan untuk mengtahui asosiasi pajanan benzene terhadap kadar hemoglobin. hasil penelitian. Metode penelitian. Penelitian ini menggunakan desain cross sectional. Pemilihan sampel mengggunakan cluster satu tingkat. Jumlah sampel dalam penelitian ini adalah 71 pekerja laki-laki responden. Pengukuran benzene menggunakan metode NIOSH 1501, pemeriksaan kadar hemoglobin menggunakan automated hematlogy analyzer. Lama kerja, usia, status merokok, konsumsi alkohol dan riwayat infeksi diukur menggunakan kuesioner Hasil penelitian menunjukkan rata-rata pajanan benzene adalah 0,34 ppm dan kadar hemoglobin pekerja laki-laki adalah15,34 ± 1,14 g/dL. Berdasarkan analisis statistik, rata-rata kadar hemoglobin pajanan benzene ≤ 0,50 ppm adalah 15.15 g/dL (95% CI : 14.80 - 15.50) dan pada pajanan benzene 0,51 – 1 ppm adalah g/dL 15.55 (95% CI : 15.19 - 15.91). Pekerja dengan lama kerja lebih dari 6 tahun memiliki kadar hemoglobin lebih rendah 0,7 g/dL (95% CI: -1.32 s.d. -0.13) dibandingkan pekerja dengan lama kerja kurang dari 6 tahun. Hal ini menunjukkan bahwa pajanan benzene di bawah 1 ppm tidak ada asosiasi yang signifikan terhadap kadar hemoglobin, namun pekerja terdapat indikasi bahwa durasi pajanan yang diukur dengan lama kerja berasosiasi dengan penurunan hemoglobin. Kata kunci: benzene, hemoglobin, pekerja laki-laki
ABSTRACT Name : Bayu Rizki Sanjaya Program of Study : Master of Public Health Title of Thesis : Association of benzene exposures and hemoglobin (Study among the footware male workers in Cibaduyut West Java) xvi + 85 pages, 16 tables, 9 pictures Benzene is one of the chemical substances which can cause some health effect. Noncarcinogenics effect can caused by benzene is anemia and pancytopenia. Benzene at lower concentrations have is conflicting evidence on potential hematological effects. Hemoglobin is one of hematological paramaters of hematological effects. The purpose of this study to explain association benzene exposure and effect of hemoglobin. Cross sectional study design was used, and 71 male workers selected by cluster random sampling. Benzene measurement used NIOSH 1501 method and hemoglobin measurement used by automated hematalogy analyzer. Confounding factors such as work duration, age, smoking status, alcohol consumption, and history of infection measurements by questionnares. The results showed that means of benzene exposure is 0,34 ppm and means of hemoglobin is 15,34 ± 1,14 g/dL. Statistical analysis showed that means of hemoglobin at benzene exposure ≤ 0,50 ppm is 15.15 g/dL (95% CI : 14.80 - 15.50) and means of hemoglobin at benzene exposure 0,51 - 1 ppm is 15.55 g/dL (95% CI : 15.19 - 15.91). Male-workers that work duration more than 6 yearshave decreased of hemoglobin 0,7 g/dL (95% CI: -1.32 s.d. -0.13). The conclution is benzene exposure below 1 ppm statistically not association with hemoglobin. However long-time exposure of benzene that measure with work duration statistically significant with decreased of hemoglobin. Keywords: benzene, hemoglobin, male workers
Benzene high exposure in working is environment always connected tohematology disorders. This is caused by hematology system is the most criticaltarget network toward benzene exposure through inhaling route. This study aimsto analyze the relation between urinary and leukocytes S-PMA level of informalshoes industrial workers exposed to benzene. This study uses cross sectionaldesign in six informal shoes industries which are located in Cibaduyut with thenumber of sample of 64 workers. Urinary and blood samples are collected on eachsample to measure urinary S-PMA level and the number of leukocytes. Urinary S-PMA level is measured using Automated Hematology Analyzer. Individualcharacteristic data are obtained through direct interview. To measure benzeneconcentration, secondary data of previous study is used. The result of the studyindicates that there is significant correlation between S-PMA level withleukocytes (p value: 0.048) and urinary S-PMA level with the type of job (p value:0.004). By 31.3% workers have urinary S-PMA level more than BEI ACGIH (>25μg/g creatinine). The higher the benzene concentration of indoor air, the moreworkers have urinary S-PMA level > 25 μg/g creatinine. The result of doublelinear regression test finds that there is association tendency between urinary andleukocytes S-PMA level, after it is controlled by type of job, time of work perday, and exercising habit variables. It can be concluded that there is associationbetween urinary S-PMA level and the number of leukocytes decrease.Keywords: benzene, S-phenylmercapturid acid, leukocytes, informal shoesindustries
The existence of benzene in the glue of footwear is endangering the health of the workers in the footwear workshop because of its toxic and carcinogenic nature. The impact is the disruption of the bone marrow which is where the production of red blood cells, white blood and platelets. The purpose of this study was to analyze the relationship of benzene exposure through the examination of S-phenylmercapturic acid (S-PMA) concentration in urine on platelet levels in base workshop workers. The design of the study was cross sectional on footwear factory workers in Sukajaya Village with a sample of 73 workers. Samples taken are urine and blood from workers to know the concentration of S-PMA and platelet levels. The concentration of S-PMA was measured by LC-MS / MS and platelets with Automated Hematology Analyzer. Individual characteristics with direct interview. The results showed the value of OR = 2.28 between S-PMA concentration to platelet level. Variables of exercise habits with OR = 1.58 between non-routine exercise on platelets and alcohol consumption OR = 1.78 among those who consume to platelet levels. Multivariable logistic regression test results showed OR = 2.59 workers with S-PMA concentration (> 0.67 μg / g creatinine) on platelet count after controlled for age and alcohol consumption.
This thesis discusses the relationship between PM2.5 exposure concentrations and MDA levels as biomarkers of oxidative stress in the environment of a cement factory. This research is a quantitative study with a cross-sectional design conducted in May-June 2024. The results of the research show that the PM2.5 concentration from all 10 points exceeds the quality standard; urine MDA level examination results vary; there was no significant relationship between exposure to PM2.5 concentrations and urinary MDA levels; there was no significant relationship between individual characteristics and urinary MDA levels; However, there is a significant relationship between PM2..5 concentration and radius with a p value of 0.000; there is a significant relationship between PM2.5 concentration and sampling time with a p value of 0.000; and there is a significant relationship between MDA levels and radius with a p value of 0.000. The research conclusion shows that there is no relationship between PM2.5 exposure and MDA levels, there is no relationship between individual characteristics and MDA levels.
Kata kunci : Kebisingan, gangguan non-auditory, gangguan fisiologis, gangguan psikologis, gangguan komunikasi.
Health and safety at work are rights of every worker. However, it cannot be denied that the physical condition of the environment in the workplace which is used to be a place for workers to do their daily activities is still potential to cause many hazards, one of which is the danger of noise. Noise can occur in the workplace both industrial and non-industrial. Exposure that occurs continuously and not in accordance with the provisions can cause various health problems both auditory and non-auditory. Therefore, this study wants to find out the relationship between the level of noise exposure and subjective (non-auditory) complaints which include assessment of physiological, psychological and communication disorders of 84 workers in the production unit area of the flour mill PT.X Cilegon, Banten. The results of this study indicate that there is no statistically significant relationship between years of service, age, smoking habits, use of ear protection equipment, habit of using earphones, habit of listening to loud music, and also training with physiological, psychological and communication disorders. However, the incidence of physiological, psychological and communication disorders among workers showed a fairly high rate, namely as many as 26.2% of workers experiencing physiological disorders, 47.6% of workers experiencing psychological disorders, and as many as 48.8% of workers experiencing communication disorders. Therefore, companies still need to follow up related to this noise problem so as not to pose risks and also greater health problems in the future.
Keywords : Noise, non-auditory disorders, physiological disorders, psychological disorders, communication disorders
