1.1. Objectives of Monitoring

So, we will start looking at monitoring. We will take some time, so some of these concepts that you have looked at it preliminary in a very simple fashion will also apply here. So, monitoring is the main step because anything we want to do, we have to measure. The first step in the environmental sequence of things that we talked about is monitoring. So, the first thing you want to decide or to discuss is what are the objectives of monitoring. You can’t just go blindly into monitoring scheme without knowing why you are doing it, what is the objective?

Monitoring is a critical step in understanding environmental processes because it involves measurement. Before starting any monitoring activities, it's vital to define clear objectives. Understanding the objectives guides the monitoring process and ensures that relevant data is collected. Objectives can significantly vary; they might relate to assessing quality, detecting pollutants, or tracking changes over time.

Think of an athlete preparing for a marathon. Before beginning training, they set clear goals: improve speed, increase stamina, and track progress. Similarly, in environmental monitoring, setting objectives is like creating a training regimen—it directs what data to gather and how to analyze it effectively.

So let us take the instance we are taking the case of water. Why do you want to measure water quality and we discussed this long back in the beginning of this. We want to measure water quality because we are worried that there may be any health effects from it. So, we would like to look at the water quality from a point of view of health effects.

Taking water quality as an example, the objective of monitoring is often linked to human health. Measuring water quality is crucial to identify potential health risks associated with contaminated water. For instance, by knowing how certain microbes or chemical pollutants can affect human health, monitoring efforts can focus on specific contaminants that pose the highest risk.

Consider a family living near a river. They know that pollution can affect their drinking water. By regularly testing the water quality, they can be proactive about their health—acting quickly if the tests show harmful chemicals. It's similar to how we monitor our health regularly to prevent potential illnesses.

So, when we do monitoring, implicit in monitoring is this issue of sampling. What do we mean by sampling? Monitoring is you are measuring a component or multiple components in a given sample of water. But then where do we sample? Which water should we take?

Sampling is an essential part of monitoring. It refers to the process of collecting water samples for analysis to determine the presence and concentration of pollutants. A critical aspect of effective monitoring is deciding where and how to sample since the sampling location can greatly influence the results and the conclusions drawn from them.

Imagine trying to find the best pizza in a city. If you taste only one slice from one restaurant, your opinion is not representative of the city's pizza quality. Similarly, environmental monitoring needs samples from various locations and conditions to get a true representation of water quality.

So, if you are drinking tap water, you will sample tap water. If tap water is not safe to drink, then I will look at packaged water and then test it and so on. So, it will keep going back and back. See so the idea of monitoring is linked to the end use of this and then we say is this particular type of water suitable for a particular application.

Determining where to sample is linked to the intended use of the water. If the goal is to assess drinking water quality, then samples should be taken from tap water. It's an iterative process—if the tap water is unsafe, other sources will be examined until the safety of drinking water is confirmed. Thus, clear objectives drive the choice of sampling locations.

Think of a chef testing a soup recipe. When tasting, they might first sample the broth. If it's too salty, they may taste vegetables or spices added later. Similarly, in water monitoring, if one source is found unsafe, we investigate other sources to ensure overall safety.

One must ask a question; the objectives of monitoring requires us to ask a question, form the monitoring question, what is it that here we want, so here is the question could be, 'is the water potable?' This will lead to the other follow-up activities that we want to do.

Formulating critical questions is integral to the monitoring process. For instance, determining whether water is potable (safe for drinking) is a primary motivator for many monitoring efforts. This type of question helps refine our objectives and outlines the direction for further investigations.

Think about preparing for a big exam. A student might ask, 'Do I understand the material well enough?' This question shapes how they study—whether they need to review textbooks, seek help, or take practice tests. In environmental monitoring, the initial questions guide the assessment approach.

If tap water is not safe to drink, then I will look at, you know, packaged water and then test it and so on. So, it will keep going back and back. See so the idea of monitoring is linked to the end use of this.

Follow-up activities play a crucial role in the monitoring process. After identifying a problem with one water source, an effective monitoring strategy involves checking alternative sources, such as packaged water. This emphasizes the importance of linking monitoring to practical outcomes, ultimately ensuring water safety.

Imagine going to a doctor who finds an issue during your check-up. They wouldn't just stop there—they would refer you for additional tests or treatment options. Similarly, if water tested is unsafe, following up with further assessments of other water sources ensures that all risks are addressed.

--