Pesticides Environmental Destination: A Study Based On Coffee Productive Areas
By Alexandra Fátima Saraiva Soares
Length4h 26m
About this audiobook
The benefits of pesticides are evident. However, the risk of adverse effects must be diminished. So, it is necessary to exert effective control of use and have available methods of calculating their environmental behavior. The models employ calculations that use concepts of activity and fugacity to characterize the equilibrium that exists between environmental compartments. Most of the emphasis is set on organic chemicals, which are more susceptible to generalization than inorganic chemical, when assessing environmental behavior.
Audiobook details
GenreScience and Nature
Length4 hrs 26 mins
Narrated byListen with 1,000+ voices
FormateBook with Audio
Publish dateOct 31, 2018
LanguageEnglish
Table of contents
1Catalographic card
2Preface
3Introduction
4Relevance
5Figure 2 - Location of water course, upstream the catchment (Palmeiras district).
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6STUDY AREA
7Vila Nova
8Hidrography and vegetation
9Soil
10Hydric balance in the region of Manhuaçu, period of 2007 through 2010
11Sub-basin of the Dom Corrêa district
12Pesticides consumption
13Source: SINDAG (2011).
14Analysis of the commercialized pesticides
15Year/semester
16Active Ingredients - AI (units)
17Pesticides environmental behavior
18General aspects
19midity and permeability.
20a) Solubility
21Koc = 0,41 Kow (Equation 1)
22Koc = 0,35 Kow (Equation 4)
23e) Fugacity
24Superficial runoff and lixiviation
25Volatilization
26GUS Indices
27Low
28Source: Goss (1992).
29All of the others
30(organic carbon density and percentage);
31Source: Mackay (2001).
32Material and methods
33Bom Jardim Streamlet
34Figure 18 - Location of the water samples collection points.
35Figure 21 - Location of the soil collection points - Profile 2.
36Pesticides environmental destination
37(Equation 8)
38Point
39Average
40(Equation 9)
41mi = CiVi = ViZif (Equation 18)
42Occurrence of pesticides in the water
43LC/MS-MS
44Figure 30 - Scheme of the pesticides extraction procedure.
45Figure 31 - Glassworks assembly for extraction.
46Equipment: Detector (MS):
47Variation from 50% to 100% of methanol during 20 minutes
48Where:
49Results
50in production (ha)
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