Environmental Science & Technology, 1980

Feature articles in ES&T hace by-lines. represent the ciews ofthe authors, and are edited bJ the Washington staff, I f you are interested in contributing an article. contact the managing &editor 148 Environmental Science & Technology This reference group, composed of representatives of federal, provincial, and state governments in the U S . and Canada, and supported by a host of scientific and technical experts, was charged to determine, with respect to the North American Great Lakes: Are nonpoint sources of pollution affecting the Great Lakes? What are the causes of this pollution? What practical remedial measures may alleviate this pollution?

2003

Routledge Handbook of Water Law and Policy, 2017

The table below provides an overview of the different categories of contaminants of emerging concern (CECs), different examples of chemicals found within those categories, where various CECs have been detected, and the health effects found in both environmental and lab-controlled studies. Click on any reference to be taken to the full citation. This table provides an overview of CECs, and is not intended to be a comprehensive review. For more information about any of the studies cited here, or to report an error, please contact Sarah Zack 1 .

Scholars Journal of Agriculture and Veterinary Sciences, 2020

Agriculture, Ecosystems & Environment, 1996

Pesticide use in agriculture can cause undesirable effects on humans and the natural environment. One of the objectives of integrated agriculture is the elimination or reduction of possible sources of environmental pollution such as pesticides. To achieve this objective, farmers need a method to assist them in estimating the environmental impact of pesticide use. This paper addresses a two-part question: what factors should be taken into consideration to assess pesticide environmental impact, and how can impact be quantified? As the environmental impact of a pesticide depends on its dispersion in the environment and on its toxicological properties, the literature on these topics is reviewed to address the first part of the question. To address the second part of the question, six recent approaches to assess the impact of pesticides on the environment are compared regarding choice, transformation and aggregation of input parameters. The use of simulation models to assess environmental impact is discussed.

Geoforum, 1995

The paper examines the recent emergence of a water pollution 'problem' in Britain associated with agricultural pesticides, and addresses the following questions: (i) how have pesticides become such an important part of arable farming practice in Britain; and (ii) how has the 'problem' of pesticide pollution been defined and contested by different groups. Farm survey evidence from the River Ouse catchment will be used to show how farmers decide to use pesticides, how they legitimise and represent their practices; and how they understand the associated environmental risks. The paper concludes that the role of pesticide advisors and the perception of weeds in farming culture remain important barriers to the reduction of pesticide use.

The China Story Yearbook 2015: Pollution, 2016

Springer eBooks, 2021

Groundwater quality situated under the intensive agriculture production of the Strumica region, Republic of North Macedonia, is investigated. Carbonate rock watering plays a significant role in groundwater chemistry. Nitrate concentrations greater than 50 mg/l were observed in 14% of investigated samples with a maximum concentration of 284 mg/l (med 3 mg/l). Almost 33% of Mn levels were above the levels of public health concern (>50 μg/l). Arsenic was found in elevated concentrations (>10 μg/l) in almost 35% of investigated groundwater samples, and 16% had concentration greater than 50 μg/l (max 177 μg/l). It is assumed that the reductive dissolution is a major mechanism by which arsenic is released into the groundwater. Statistical analysis shows significant differences regarding NH 4 + , PO 4 3-, Fe, Mn, As, Ba, Ti, and Zn concentrations between shallow and deep groundwater. Factor analysis revealed four significant factors. F1 (Cl -, SO 4 2-, Na, K, and B) associates the most affected ions by rainwater leaching. F2 (HCO 3 -, Ca, As, and Mg) makes an association between ions that arise from the hydrogeochemical reactions. F3 (NO 3 -, NO 2 -, Mg, and Cu) associates ions affected by the reduction processes, while F5 (NH 4 + , PO 4 3-, and Fe) associates ions which are related to the use of fertilizers.