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At least 19 recordsLinked to original sources
PubMed2001

Determination of wastewater LC50 of the different process stages of the textile industry.

Textile plants are very important sources of toxic discharges. The purpose of the research described in this paper was to use bioassays with daphnids to determine the LC50 values of textile wastewater samples taken from different stages of the finishing textile industry. Toxicity due to dyeing, chlorination, and the absence of adequate physicochemical conditions for daphnid survival were considered. Wastewater samples corresponding to each process stage were collected at five finishing textile industries and assayed according to previously published procedures. The sensitivity of daphnids to chemicals was assayed using sodium dodecyl sulfate and was similar to other reports (14.6+/-6.8 vs 14.5+/-2.3 mg/L). All effluents from the five company samples were toxic in terms of LC50 and exhibited very high toxicity with acute toxicity unit (ATU) levels between 2.2 and 960, indicating that the five textile industries produced toxic water. The sensory characteristics indicated that the dyes contributed to overall sample toxicity at all process stages. The most toxic contaminant seemed to be ClO- at levels between 0.2 and 6.8 mg/L, suggesting that further research is needed on the economic costs of stage-by-stage and total effluent treatments.

Animals↗
PubMed2003

Multiple use of water in industry--the textile industry case.

The main aim of this article is to give a review on the state of the art of available processes for the advanced treatment of wastewater from Textile Processing Industry (TPI). After an introduction to the specific wastewater situation of the TPI the article reviews the options of process and production integrated measures. The available unit processes and examples of applied combinations of unit processes are described. A special place is given to the in-plant treatment, the reuse of the treated split flow or mixed wastewater and the recovery of textile auxiliaries and dyes.

Coloring Agents↗
PubMed2004

The role of enzymes produced by white-rot fungus Irpex lacteus in the decolorization of the textile industry effluent.

The textile industry wastewater has been decolorized efficiently by the white rot fungus, Irpex lacteus, without adding any chemicals. The degree of the decolorization of the dye effluent by shaking or stationary cultures is 59 and 93%, respectively, on the 8th day. The higher level of manganese-dependent peroxidase (MnP) and non-specific peroxidase (NsP) was detected in stationary cultures than in the cultures shaken. Laccase activities were equivalent in both cultures and its level was not affected significantly by the culture duration. Neither lignin peroxidase (LiP) nor Remazol Brilliant Blue R oxidase (RBBR ox) was detected in both cultures. The absorbance of the dye effluent was significantly decreased by the stationary culture filtrate of 7 days in the absence of Mn (II) and veratryl alcohol. In the stationary culture filtrate, three or more additional peroxidase bands were detected by the zymogram analysis.

Basidiomycota↗
PubMed2002

Necessity of toxicity assessment in Turkish industrial discharges (examples from metal and textile industry effluents).

Toxicity of some organic and inorganic chemicals to microorganisms is an important consideration in assessing their environmental impact against their economic benefits. Microorganisms play an important role in several environmental processes, both natural and engineered. Some organic and inorganics at toxic levels have been detected in industrial discharges resulting in plant upsets and discharge permit violations. In addition to this, even though in some cases the effluent wastewater does not exceed the discharge limits, the results of toxicity tests show potential toxicity. Toxicity knowledge of effluents can benefit treatment plant operators in optimising plant operation, setting pre-treatment standards, and protecting receiving water quality and in establishing sewer discharge permits to safeguard the plant. In the Turkish regulations only toxicity dilution factor (TDF) with fish is part of the toxicity monitoring program of permissible wastewater discharge. In various countries, laboratory studies involving the use of different organisms and protocol for toxicity assessment was conducted involving a number of discharges. In this study, it was aimed to investigate the acute toxicity of textile and metal industry wastewaters by traditional and enrichment toxicity tests and emphasize the importance of toxicity tests in wastewater discharge regulations. The enrichment toxicity tests are novel applications and give an idea whether there is potential toxicity or growth limiting and stimulation conditions. Different organisms were used such as bacteria (Floc and Coliform bacteria) algae (Chlorella sp.). fish (Lepistes sp.) and protozoan (Vorticella sp.) to represent four tropic levels. The textile industry results showed acute toxicity for at least one organism in 8 out of 23 effluent samples. Acute toxicity for at least two organisms in 7 out of 23 effluent sampling was observed for the metal industry. The toxicity test results were assessed with chemical analyses such as COD, BOD, color and heavy metals. It was observed that the toxicity of the effluents could not be explained by using physicochemical analyses in 5 cases for metal and 4 cases for the textile industries. The results clearly showed that the use of bioassay tests produce additional information about the toxicity potential of industrial discharges and effluents.

Animals↗
PubMed1990

[Hygienic characteristics of the air and air microflora in the weaving mill of the wool textile industry].

Modern wool textile factories are characterized by hygienically inadequate labour conditions which include exceeding dust and microbe contamination of the air in the working zone and poor microclimate conditions in some shops. Basing on the studies of the air contamination sources, the contributors propose recommendations for health-related improvement of the air conditions.

Air Microbiology↗
PubMed1985

[Incidence of arterial hypertension in the population of workers in the textile industry in Lódź].

Textile workers in Lódź have undergone a cross-sectional representative study aimed at the detection of arterial hypertension. In addition, the impact of sex, age, overweight, blood cholesterol level, smoking habit and noise upon the prevalence of that disease has been tested. Arterial hypertension has been found in 8.3% subjects, 9.2%--women, 6.7%--men. The prevalence was increasing significantly with age. Those with overweight exhibited higher prevalence rates. Hypercholesterolemia was accompanied by more frequent arterial hypertension; in women it was statistically significant. No significant negative effects of smoking and noise as occupational hazards promoting that disease have been found.

Age Factors↗
PubMed1996

Contact dermatitis in the textile industry: a review of 72 patients.

BACKGROUND: Occupational skin disease can cause significant morbidity in textile industry workers. Both allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD) have been reported. OBJECTIVE: The purpose of this study was to characterize and determine the relative frequency of work-related ACD and ICD in textile workers. METHODS: Seventy-two textile industry workers seen during a 5-year period were evaluated for possible work-related contact dermatitis. All patients underwent patch testing with a screening series. Many patients (70%), depending on occupational exposures, also underwent testing with a textile dye and finish series and additional patch tests of specific workplace materials. RESULTS: Twenty-one patients (29%) were diagnosed as having a predominantly work-related ACD. Relevant allergens included textile dyes, textile finishes, and rubber allergens. Twenty-seven patients (38%) were diagnosed as having primarily a work-related ICD. Five patients (7%) were believed to have combined work-related ACD and ICD. Nineteen patients (26%) were believed to have purely non-work-related allergens, irritants, atopy, or other dermatoses as the major factors in their skin disease. The hands were the most common site of involvement. Of the 40 patients with occupational exposure to raw textile products 36 (90%) had a work-related dermatitis and only 4 (10%) had a non-work-related dermatitis. CONCLUSION: In the 72 textile workers evaluated in our clinic, occupational exposures were an important cause of skin disease (74% in our series). Textile workers with job exposures to raw textile materials are at highest risk for work-related dermatitis. Textile industry workers with essentially no textile product exposure were more likely to have non-work-related dermatoses. ICD was only slightly more frequent than ACD. The hands were the most common site of involvement. Because relevant allergens (work-related and non-work-related) were more common than expected, we emphasize the importance of patch testing with standard screening allergens in the diagnostic evaluation of patients with dermatitis who work in the textile industry. In addition, textile dye and finish allergens should also be tested in this patient population, particularly those patients with any textile product exposure.

Adult↗
PubMed2006

Development of a job exposure matrix (JEM) for the textile industry in Shanghai, China.

We developed a job exposure matrix (JEM) for the Shanghai textile industry constructed along three axes: industry sector, textile process, and hazardous agent. We assessed 35 different categories of dust, chemical, and physical agents for 149 textile processes within nine industry sectors: cotton, cotton/synthetic, cotton/other (nonsynthetic), wool, silk, synthetic, mineral, other mixed (e.g., wool and synthetic), and nonproduction. The JEM was constructed from two components: a priori assessment of the textile process by a team of U.S. industrial hygienists, and the prevalence of exposures reported by Chinese industrial hygienists in specific textile processes within the factory. The JEM was applied to an ongoing case-cohort study of cancer in women textile workers. The JEM assessed only dichotomous exposure (ever/never), and could be coupled with cumulative exposure by years of employment. The most common exposures in cotton mills were cotton dust and solvent exposures. Dyeing processes had the highest frequency of exposures, including solvents, acids, bases and caustics, bleaching agents, dyes, dye chemicals and intermediates, and formaldehyde. Only two processes were identified with formaldehyde exposure, beck dyeing and resin finishing. The most prevalent exposures among the subcohort, occurring in more than 60% of the women, were electromagnetic fields, lubricants, and cotton dust. More than one-third of subcohort subjects were also exposed to synthetic fiber dust, and slightly less than one-third of women were exposed to endotoxin. This JEM could be applicable for epidemiologic research in other textile industries.

Aged↗
PubMed1998

[Prevalence of respiratory diseases in the textile industry. Relation with dust levels].

Many workers in the textile industry have respiratory symptoms that are related to their work environment. In this study we observed the dust level conditions of eleven textile industries of the North of Portugal. The dust levels determined were between 0.1 mg/m3 and 1.25 mg/m3, in many cases above the Portuguese standard levels of exposure (VLE). For these dust levels we found a prevalence of 23% of workers with respiratory symptoms with occupational characteristics in 10.8%, and 5.7% presenting byssinosis. Workers exposed to cotton fibres in spinning areas have the highest prevalence of symptoms, and reduction of the FEV1. These characteristics were related to dust levels and were higher in the initial phases of the spinning processes. We found no cases of byssinosis in workers exposed to synthetic fibres, or in workers from weaving areas. Smoking habits were related to the reduction of the FEV1, and severity of respiratory illness but not to the presence of byssinosis.

Dust↗
PubMedDate not supplied

Death certificate case-control study of cancers of the prostate and colon and employment in the textile industry.

A case-control study was conducted to investigate possible relationships between employment in the textile industry and cancers of the prostate and colon. Death certificate information on occupation and industry was obtained for 1037 male prostatic cancer cases, 820 male and female colon cases, and matched controls who died during 1970-1978 in South Carolina. Black males were the only race-sex group to show an excess risk of prostate or colon cancer among employees of the textile industry. Nonstatistically significant excesses of prostate cancer were seen in dyeing and finishing businesses and broad woven fabric mills. Overall, there was no strong evidence indicating a relationship between the textile industry and either prostate or colon cancer. It is unlikely that limitations of the data masked real risks since previously reported associations with nontextile industries were confirmed.

Aged↗
PubMed1997

[Respiratory symptoms in the textile industry. Their prevalence in the Vale do Ave].

Some workers in the textile industry have respiratory symptoms related to their occupation. This study is aimed at evaluating the frequency of respiratory symptoms in textile industries in the North of Portugal. We evaluated 3529 workers from 20 factories (19 deal with synthetic fibres and cotton and the other deals with sisal.) Among the workers, there were 34.5% with respiratory symptoms - 24,5% referred nasal symptoms, 22,6% with bronchial symptoms and 12,6% associated both. The workers who dealt with cotton presented a higher frequency of bronchial symptoms (25,0%) than the ones dealing with synthetic fibres (12,7% p < 0,000001). The same was noticed among the workers in the opening and spinning areas, who showed a higher frequency of bronchial symptoms (28,3%) than the ones in weaving areas (12,7% p < 0,000001). We did not find any differences concerning the frequency of symptoms among the workers handling both natural fibres (cotton and sisal). Individually all the symptoms were more frequent among the workers handling natural fibres. The most frequent symptom depended on the fibre. Cough was more frequently mentioned among the workers handling synthetic fibres (9.6%) and cotton (15.7%). Among the workers who handle sisal, dyspnea was the most frequently mentioned (16.9%). Productive cough was the most frequent association (7.2% sisal; 2.8% synthetic; 8.0% cotton), and the association between dyspnea and wheezing the least mentioned (6.4% sisal; 0.5% synthetic; 5.9% cotton). The workers with bronchial symptoms (synthetic fibre and cotton) have more years of exposure and greater smoking habits. In a covariance adjusted for age and smoking habits, the workers with bronchial symptoms, exposed to cotton have more years of exposure.

Adult↗
PubMed2002

Epidemiologic evidence of cancer risk in textile industry workers: a review and update.

A meta-analysis of epidemiologic studies for textile industry workers was undertaken in an attempt to evaluate whether the cancer risk varies within the textile industry in relation to the job held or the textile fiber used. We combined studies published up until 1990, when an ad hoc IARC Monograph was issued, and those published after 1990 with the aim of appreciating evidence of reversing trends in cancer risk. Observed and expected cases reported in the original studies were summed up and the totals were divided to obtain a pooled relative risk (PRR) with a 95% confidence interval (CI) estimated with a fixed-effect model. We calculated a chi-square test (chi2) of heterogeneity among studies. When PRR and chi2 were both significant, PRR and CI were calculated with a random-effect model and the source of heterogeneity was investigated. Lung cancer risk was around 0.4 in the first study on cotton workers published in 1936, around 0.7 in subsequent studies, mostly published in the 1970s and 1980s, and around 1.0 in the last studies published in the 1990s. Papers published in the 1970s and 1980s produced consistent risk estimates for lung cancer risk, which was significantly lower than 1.0 in workers exposed to cotton (PRR = 0.77; CI = 0.69-0.86) and wool dust (0.71; 0.50-0.92), as well as in carders and fiber preparers (0.73; 0.54-0.91), weavers (0.71; 0.56-0.85), and spinners and weavers (0.78; 0.66-0.91). Lung cancer PRRs did not significantly deviate from 1.0 in textile workers using synthetic fibers or silk, and in dyers. Increased PRRs were found for sinonasal cancer in workers exposed to cotton dust, and in workers involved in spinning or weaving (4.14; 1.80-6.49). PRR was 1.46 (1.10-1.82) for cancer of the digestive system in textile workers using synthetic fibers or silk, and 1.34 (1.10-1.59) for colorectal cancer in spinners and weavers. The increased bladder cancer PRR in dyers (1.39; 1.07-1.71) is generally attributed to textile dye exposure. In studies published after 1990, there is a general tendency to move toward unity for all the cancer risk estimates, leading to an increasing heterogeneity among studies. Since adjustment for smoking made little difference to the findings, the latter could be attributed to the exposure to textile dusts. The recent findings could be due to a lowering of dust concentration in the workplaces. The reduction of cases of upper respiratory tract cancer parallels with a corresponding increase of lung cancer cases. So, preventive measures have paradoxically increased the lung cancer burden to the textile workers.

Adult↗