aims: bottled water is widely used in many countries and more than 100 different brands of bottled water are produced in iran. the aim of the present research was to assess the chemical compound of some iranian brands of bottled water and compare them with the mention information on their labels.     instrument & methods: this descriptive study was performed during march to december 2012 on the...

OBJECTIVE To assess the sanitary quality of drinking water in rural farms through counts of microbiological indicators. METHODS A total of 180 drinking water samples from sources, reservoirs and water from site of consumption were collected in 30 rural farms located in the northeast region of the sate of São Paulo. The most probable number of total coliforms, Escherichia coli and mesophilic m...

Background: The existence of fluoride ion in potable water has distinctive effects on human health. Fluoride is attracted by positively charged calcium in teeth and bones due to its strong electro-negativity which results in dental, skeletal, and non-skeletal forms of xuorosis and associated health complaints in children as well as adults. Methods: Water samples from groundwater used for dri...

introduction: thyroid hormone is important for the growth, development and metabolism of the body. a new amount of data show that thyroid hormone influences on pituitary-testis axis. so in this study we investigated the effects of hypothyroidism induction by propiltiouracil (ptu) on serum levels of thyroid hormone, testosterone hormone, luteinizing hormone, follicle stimulating hormone, body an...

A simple flow-through system has been developed which makes use of wasted heat generated in traditional clay ovens (chullis) to pasteurize surface water. A hollow aluminium coil is built into the clay chulli, and water is passed through the coil during normal cooking events. By adjusting the flow rate, effluent temperature can be maintained at approximately 70 degrees C. Laboratory testing, alo...

There has been a great deal of international discussion on the nature and relevance of endocrine disrupting compounds in the environment. Changes in reproductive organs of fish and mollusks have been demonstrated in rivers downstream of sewage discharges in Europe and in North America, which have been attributed to estrogenic compounds in the effluent. The anatomical and physiological changes i...

macrorhabdosis is a debilitating syndrome in budgerigars (melopsittacus undulatus) due to theascomycetous yeast macrorhabdus ornithogaster. in the present study, occurrences of acutemacrorhabdosis resulting in severe mortality in budgerigar fledglings and the effect of differenttreatment regimens for the control of the disease were investigated. the budgerigar (melopsittacusundulates) flock con...

Due to the impact of climate change, the process of salinity intrusion occurs frequently in coastal areas of Vietnam. The main objective of this study is therefore to try diff erent nanofi ltration (NF) processes (such as single-stage and dual-stage NF) to treat brackish water for residential areas in Thu Bon river basin, where the salinity varies signifi cant with seas...