Nitrate in United kingdom rivers: policy and its outcomes since 1970.
Environ Sci Technol
; 45(1): 175-81, 2011 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-20681541
ABSTRACT
Modern conventional farming provides Western Europe and North America with reliable, high quality, and relatively cheap supplies of food and fiber, increasingly viewed as a potential source of fuel. One of the costs is continued widespread pollution of rivers and groundwater-predominantly by nutrients. In 1970, in both the United States and UK, farming was focused on maximizing yield and management practices were rapidly modernizing. Little attention was paid to the external impacts of farming. In 2010, diffuse pollution from agriculture is being seriously addressed by both voluntary and statutory means in an attempt to balance environmental costs with the continued benefits of agricultural production. In this paper we consider long-term changes in the concentration and flux of nitrate in five rural UK rivers to demonstrate the impact of agricultural intensification and subsequent policies to reduce diffuse pollution on river water quality between 1970 and 2010.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Poluição Química da Água
/
Rios
/
Política Ambiental
/
Nitratos
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article