• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Ecological Effects of Pesticides
Ecological Effects of Pesticides

... Despite the good results of using pesticides in agriculture and public health, their use is usually accompanied with deleterious environmental and public health effects. Pesticides hold a unique position among environmental contaminants due to their high biological toxicity (acute and chronic). Pest ...
Accumulation of pesticides in pacific chorus frogs (Pseudacris regilla
Accumulation of pesticides in pacific chorus frogs (Pseudacris regilla

... known about the occurrence, fate, and transport of fungicides, and very few studies have reported the environmental occurrence of these compounds in the United States. In agricultural areas in Europe, tebuconazole was one of the most frequently detected pesticides in air samples [33]. Schummer et al ...
Pyrethroid Insecticides: Use, Environmental Fate, and
Pyrethroid Insecticides: Use, Environmental Fate, and

... Fishel, 2005). Chronic animal feeding studies have produced high no-effect levels, indicating both a low potential to bioaccumulate and proficient detoxicification in mammalian receptors. In addition, although these compounds are categorized as highly toxic to very highly toxic to nontarget fish and ...
Disinfection and Sterilization: What`s New
Disinfection and Sterilization: What`s New

... Data are insufficient to proffer a maximal outer duration for use of appropriately cleaned, reprocessed, dried and stored endoscopes Without full data reprocessing within this interval may be advisable for certain situations (endoscope entry to otherwise sterile regions such as biliary tree, pancr ...
To whom correspondence may be addressed
To whom correspondence may be addressed

... marine environments should be carefully evaluated. In the marine environment, work should be focused on the DOM variable, given the different characteristics of riverine, marine and estuarine organic matter, while in estuaries the complexity of the geochemical dynamics and the osmoregulatory respons ...
Bursting the bubble on antibacterial soap
Bursting the bubble on antibacterial soap

... Regardless, we have all those wonderful antibacterial soaps to help keep us safe from germs, right? Well, no. Antibacterial soap is not a panacea; it's not really even a good thing, at least not the way it's used today. The article below discusses the problems with triclosan, one of the most common ...
Chloroform - Santa Cruz Biotechnology
Chloroform - Santa Cruz Biotechnology

... CHRONIC HEALTH EFFECTS ■ There has been concern that this material can cause cancer or mutations, but there is not enough data to make an assessment. ■ There is ample evidence that this material can be regarded as being able to cause cancer in humans based on experiments and other information. There ...
(Material) Safety Data Sheet Sodium Bicarbonate
(Material) Safety Data Sheet Sodium Bicarbonate

... ▪ Sweep or vacuum up and place in an appropriate closed container. Avoid generating dust. Clean up residual material by washing area with water. Collect washings for disposal. ...
full public report daran sl143
full public report daran sl143

... 9 months shelf life. The potential for public exposure to DARAN SL143 is expected to be low due to its manner of use and disposal. Exposure to coated components may be widespread but the material will be in its cured state. Therefore, due to its low exposure, DARAN SL143 is unlikely to pose a signif ...
1. Part 1: Supplemental hazard information
1. Part 1: Supplemental hazard information

... accordance with the criteria of Annex I, Chapter 3.1 as being in Acute Toxicity Category 1, 2 or 3, or in accordance with the criteria of Chapter 3.2 as being in Skin Corrosion Category 1, or in accordance with the criteria of Chapter 3.8 as being in Specific Target Organ Systemic Toxicity (STOST) – ...
Increased Health Hazards due to Additives of Tobacco Products
Increased Health Hazards due to Additives of Tobacco Products

... Cigarette manufacturers have known about the carcinogenic and disease causing properties of their products for at least five decades. The amount of knowledge and the unethical cover-up of all findings has become apparent in the testimonies of leading international experts in the ongoing US governmen ...
O A
O A

... Combinations of antimicrobials, whether they are antibiotics, disinfectants or preservatives, which demonstrate a synergistic effect, are much sought after. In the clinical area, combination antibiotic therapy is used in an attempt to avoid the emergence of resistance, it can broaden the bacterial s ...
Nanomaterials in the aquatic environment: A
Nanomaterials in the aquatic environment: A

... Having readily available, quantitative methods for NMs in different matrices will provide insight into the potential effects of NMs. For example, linking NM exposure to organism body burden further clarified by quantitative measurements of NM distribution within the organism would likely lead to key ...
Protecting aquatic organisms from chemicals
Protecting aquatic organisms from chemicals

... (probably tens of thousands) of man-made chemicals arrive at STPs. But how many of these leave the STPs, and enter the freshwater environment? Unsurprisingly, this number is not known either. STPs are designed to reduce, or even eliminate completely, the toxicity of wastewater before it reaches the ...
9. evaluation of toxicological data
9. evaluation of toxicological data

... 0.5 g of MicroLite was applied under a 2.5 cm2 gauze pad moistened with 0.5 mL of distilled water to one intact skin site on each animal and held under semi-occlusive dressing. After four hours, treatment sites were washed using water to ...
(2013) XXX draft COMMISSION RECOMMENDATION of XXXX
(2013) XXX draft COMMISSION RECOMMENDATION of XXXX

... Substances are placed in category 1 when they are known or presumed to have caused endocrine-mediated adverse effects in humans or population-relevant endocrine-mediated adverse effects in animal species living in the environment or when there is evidence from experimental studies (in vivo), possibl ...
Perfluorooctanoic Acid (PFOA): A Global Water
Perfluorooctanoic Acid (PFOA): A Global Water

... second half of the 1900s. During that time, it was haphazardly introduced into the natural environment through manufacturing processes and also exposed to humans through various applications and products. What makes PFOA an attractive chemical for industrial use also gives it low biodegradability pr ...
Unclassified ENV/JM/MONO(2003)15 ENV/JM/MONO
Unclassified ENV/JM/MONO(2003)15 ENV/JM/MONO

... Although work has been done previously on the development of internationally-agreed upon definitions for terms used in chemical hazard/risk assessment (e.g. by OECD, IPCS and others), inconsistencies in the definitions and use of many of these terms still exist. For example, inconsistencies were rec ...
WMIC_QA11_7_Homeopathy
WMIC_QA11_7_Homeopathy

... suggested that adverse effects were caused by three main effects: allergic reactions, ingestion of toxic substances and substitution of conventional care (7). In 94.7% of the cases, the potencies were described as below 12c (7). It is important to consider the dilution of the remedy, many (but not a ...
TOX/2013/02 - Committee on Toxicity
TOX/2013/02 - Committee on Toxicity

... The data submitted included the reports of 112 original studies submitted to support the request for authorisation of aspartame in Europe in the early 1980s (http://www.efsa.europa.eu/en/dataclosed/call/110601.htm). The selection criteria to be applied to both the existing published and unpublished ...
Green Seal Standard and Environmental Evaluation for General
Green Seal Standard and Environmental Evaluation for General

... Table 3.6 Aerobic biodegradation of surfactants in screening tests..................................................................3-24 Table 3.7 Surfactants in the environment..............................................................................................................3-25 Table 3. ...
How to Determine if an Additional 10 Safety Factor Is Needed for
How to Determine if an Additional 10 Safety Factor Is Needed for

... toxicological endpoint, the setting of RfD (ADI), and the need for an additional 103 FQPA safety factor, was assessed. Conclusions from this evaluation are as follows: (1) There are adequate data on the effects of chlorpyrifos on blood, brain, and peripheral tissue AChE in both adult and neonatal ra ...
Dr. Samantha Champ for BASF on Triclosan: Comments on Proposed Amendments to Rules Governing Health Risk Limits for Groundwater (PDF)
Dr. Samantha Champ for BASF on Triclosan: Comments on Proposed Amendments to Rules Governing Health Risk Limits for Groundwater (PDF)

... “Point of Departure (POD): 7.23 mg/kg-d (BMDL for decreased total thyroxine (tT4) from Zorrilla et al 2009 based on a benchmark response of 20%)”, and as the “Critical effect(s): Decreased serum total thyroxine (tT4)”. In our view use of these criteria for calculating the HRL is inappropriate. There ...
Contaminants in the Urban Environment: Bisphenol-A1
Contaminants in the Urban Environment: Bisphenol-A1

... of scientific evidence) that BPA is safe as a food-contact substance (FDA 2014). Thus, despite evidence of the effects of BPA on laboratory animals, the fact that humans rapidly metabolize BPA and are less sensitive to the effects of BPA (compared to rodents), has led to doubts about the potential d ...
Risk Assessment of Metals in the Environment*
Risk Assessment of Metals in the Environment*

... environment is essential; clearly, synthetic organic contaminants do not fall into this category. Bioaccumulation of essential metals is a natural process required by living ...
< 1 2 3 4 5 6 7 ... 20 >

Biocide

A biocide is defined in the European legislation as a chemical substance or microorganism intended to destroy, deter, render harmless, or exert a controlling effect on any harmful organism by chemical or biological means. The US Environmental Protection Agency (EPA) uses a slightly differenct definition for biocides as ""a diverse group of poisonous substances including preservatives, insecticides, disinfectants, and pesticides used for the control of organisms that are harmful to human or animal health or that cause damage to natural or manufactured products"". When compared, the two definitions roughly imply the same, although the US EPA definition includes plant protection products and some veterinary medicines.The terms ""biocides"" and ""pesticides"" are regularly interchanged, and often confused with ""plant protection products"". To clarify this, pesticides include both biocides and plant protection products, where the former regards substances for non food and feed purposes and the latter regards substances for food and feed purposes.When discussing biocides a distinction should be made between the biocidal active substance and the biocidal product. The biocidal active substances are mostly chemical compounds, but can also be microorganisms (e.g. bacteria). Biocidal products contain one or more biocidal active substances and may contain other non-active co-formulants that ensure the effectiveness as well as the desired pH, viscosity, colour, odour, etc. of the final product. Biocidal products are available on the market for use by professional and/or non-professional consumers.Although most of the biocidal active substances have a relative high toxicity; there are also examples of active substances with low toxicity, such as CO2, which exhibit their biocidal activity only under certain specific conditions such as in closed systems. In such cases, the biocidal product is the combination of the active substance and the device that ensures the intended biocidal activity, i.e. suffocation of rodents by CO2 in a closed system trap. Another example of biocidal products available to consumers are products impregnated with biocides (also called treated articles), such as clothes and wristbands impregnated with insecticides, socks impregnated with antibacterial substances etc.Biocides are commonly used in medicine, agriculture, forestry, and industry. Biocidal substances and products are also employed as anti-fouling agents or disinfectants under other circumstances: chlorine, for example, is used as a short-life biocide in industrial water treatment but as a disinfectant in swimming pools. Many biocides are synthetic, but there are naturally occurring biocides classified as natural biocides, derived from, e.g., bacteria and plants.A biocide can be: A pesticide: this includes fungicides, herbicides, insecticides, algicides, molluscicides, miticides and rodenticides. An antimicrobial: this includes germicides, antibiotics, antibacterials, antivirals, antifungals, antiprotozoals and antiparasites. See also spermicide.Biocide can also refer to the destruction of life, a form of omnicide that affects every living thing, not just humans; one who wishes that everything in the entire world, or universe, face extinction, is labeled a 'Biocidist', or having 'biocidal' ideologies.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report