"PESTICIDES are like bombs being dropped in the food web creating
enormous destruction," said Dr. K. L. Heong, an entomologist who once
worked with the Laguna-based International Rice Research Institute.
In recent decades, there has been a steady
increase in the amount of pesticides marketed for argicultural use. In the
European Union alone, more than 200,000 tonnes of pesticides (active
ingredients) are used annually. Between 2005 and 2010, the total volume of
global sales rose from US$ 31 billion to US$ 38 billion. The amount of
pesticides used internationally has risen fifty-fold since 1950. China is
now the country that both uses and produces the largest amounts of pesticides (PAN Germany,
Pesticides and health hazards, Facts and figures).
In the UK, The Environment Secretary Owen Paterson is examining the possibility of banning the controversial nerve-agent pesticides increasingly implicated in the decline of bees and other pollinating insects (Independent 22 November). And in Saudi Arabia, the Saudi Gazette reports that the ministry of agriculture recently banned 30 different agricultural pesticides after research has pointed to the dangers that these harmful chemicals pose to public health. The Ministry of Agriculture has established a center with a total expenditure of SR70 million to promote organic agricultural methods throughout the Kingdom.
Global chemical
pollution impacts on both humanity and ecosystems, and includes adverse effects
from long-term exposure to low or sub-lethal concentrations of single chemicals
or to mixtures of chemicals. More than 90 per cent of water and fish samples
from aquatic environments are contaminated by pesticides. (Global
Chemicals Outlook: Towards Sound Management of Chemicals.)
In most countries
there is no systematic follow up of pesticides in nature and in no country
there is monitoring of all active substances; what is found is still
frightening enough. Eighty percent of all rivers in the USA contain pesticide residues.
Sixty percent of all wells have residues. The proportion contaminated wells was
almost as high in urbanized areas, due to use in home gardens, gravel or stone
paths, golf courses etc. In France,
pesticides are found in all rivers and half of all water sources had at least
traces of them. Of the fifty substances that are checked in the Netherlands,
two thirds were found in ground water (OECD 2001). 20
pesticides were found in groundwater used by 3.5 million people in the Santa
Ana River watershed. On the great plains in the USA researchers
detected two insecticides and 27 herbicides in reservoir water. Water treatment
removed from 14 to 86% of individual herbicides. Drinking water contained 3–15
herbicides (average, 6.4).
Pesticide Suicides
Because of their availability, intake of these pesticides is a frequent
suicide method. Many hospital records show that a high proportion of severe
acute pesticide poisonings are in fact suicides, especially in Asia. The WHO estimates that there are about 2 million
pesticide suicides and suicide attempts worldwide every year. The number of
suicidal deaths through pesticides was estimated as being as many as 370,000 in
2007. In Asia alone, more than 300,000 people
die this way each year. The numbers reported from Sri Lanka are especially alarming.
In several rural areas there, pesticide suicides are the most frequent cause of
death in hospitals. (PAN Germany,
Pesticides and health hazards, Facts and figures).
In 1990, the WHO
assumed that one million severe cases of unintentional pesticide poisoning
occurred annually. What is remarkable is another, much higher WHO estimate from
the same year that is rarely cited in the relevant literature. This figure refers
to 25 million unintentional poisonings annually of farm workers in developing countries
alone, with on average 3% of agricultural workers in developing countries suffering an episode
of pesticide poisoning per year. A recent study by PAN International assumes
that currently, of the total 1.3 billion farm workers worldwide, about 41
million suffer pesticide poisoning each year, with average poisoning rates at
32%. (PAN Germany,
Pesticides and health hazards, Facts and figures)
Statistics on
illnesses due to chronic poisoning as a result of pesticide use or pesticide contamination
of food are very limited. But there is reliable evidence that the increasing
incidence of cancer, hormonal effects, and neurological disorders such as Parkinson’s
disease is linked to the use of certain pesticides in agricultural production. (PAN Germany,
Pesticides and health hazards, Facts and figures)
The damage on nature
and the suffering of humans also come with costs. UNEP
Cost of Inaction Report (2012) reveals that the costs of injury (lost work
days, outpatient medical treatment, and inpatient hospitalization) from
pesticide poisonings, in Sub-saharan Africa alone, amounted to USD $4.4 billion
in 2005. This is an underestimate as it does not include the costs of lost livelihoods and lives, environmental health effects,
and effects of other chemicals. Another study suggests that the major economic
and environmental losses due to the use of pesticides in the United States amounted to USD $1.5
billion in pesticides resistance and USD $1.4 billion in crop losses, and USD
$2.2 billion in bird losses. (Global
Chemicals Outlook: Towards Sound Management of Chemicals)